Abréviations en informatique, télécommunications et radionavigation

Recension empirique d'acronymes rencontrés dans la littérature, la presse technico-commerciale (depuis 1985...) et la documentation en rapport avec la transmission de données.  Un intérêt, parmi d'autres, de cette liste de plus de 4800 sigles (et 7500 significations), est, pour lever des ambiguïtés, de signaler les sens multiples et peu connus de tant d'acronymes...
(ABS, ARC, ATM, DHS, MAC, NCSA, PPM, QED, RMS, RPG, WASP... cgs  ;-)
alors qu'un moteur de recherche vous égare parmi des clubs sportifs ou des sociétés diverses...
Une interrogation ultérieure du moteur basée sur l'explicitation de l'acronyme donnera des informations bien plus utiles  (sans oublier, bien sûr, EN.Wikipedia.org/wiki/xxx et FR.Wikipedia.org/wiki/xxx , ni le RFC 4949).

Il existe de nombreux serveurs de recherche d'acronymes, plus ou moins spécialisés, avec des notices plus ou moins détaillées (mais aucun n'est complet...) : voir  Liste de serveurs
 (et aussi: Acronymes en environnement et gestion de risques).
made with Macintosh
[Auteur: Robert GOEDERTIER -  m.à.j.  13 juillet 2018]
 [ -->Page d'Accueil ]

 

A - B - C - D - E - F-G - H-I - J - L - M - N - O - P-Q - R - S - T - U - V - W- X-Z


AAA : Authentication, Authorization, Accounting
AAAI : American Association for Artificial Intelligence
AAC : Advanced Audio Coding
AACS : Advanced Access Content System
AAF : Advanced Authoring Format
AAK : Authenticated Anticipatory Keying
AAL : ATM Adaptation Layer / Anytime Anywhere Learning / Above Aerodrome Level
AAR : Automatic Alternative Routing
AARP : AppleTalk Address Resolution Protocol
AAV : Automated Adress Verification
ABE : Automated Barcode Evaluator / Acetone Butanol Ethanol
ABI : Application Binary Interface
ABL : Allocation Blocks Layout
ABM : Anything But Microsoft / Asynchronous Balanced Mode
ABNF : Augmented Backus-Naur Form (rfc 5234, 5954 - IPv6)
ABNO : Application-Based Network Operations
ABR : Available Bit Rate / Auditory Brainstam Response
ABS : Automatic Backup System / Audio Bit Stream / (poly)Acrylonitrile Butadiene Styrene / Authorize Before Sending / Alternative Billing Service / American Bureau of Shipping / Anti-Blocking System / Algemeen BoerenSyndikaat
ABT : ATM Block Transfer
ACA : Active Configuration Area
ACAP : Application Configuration Access Protocol (previous IMSP) / Automated Content Access Protocol
ACB : Application Control Block / Annoyance Call Bureau
ACCM : Asynchronous-Control-Character-Map
ACD : Automatic Call Distribution / Apple Cinema Display
ACDC : Active Cyber Defense Certainty Act
ACE : Advanced Computing Environment / Adverse Channel Enhancement [Microcom] / ADAPTIVE Communication Environment / Automatic Calibration and Equalization / Automatic Calling Equipment / Adobe Certified Expert / Access-Controlled Entry / Africa Coast to Europe (cable) / a collaborative editor / Acute Coronary Event
ACELP : Algebraic Code Excited Linear Prediction
ACF : Advanced Communication Function / Activation Control Function / Assigned Centre Frequency
ACFC : Address-and-Control-Field-Compression
ACG : Assignment Coordination Group
ACH : Associated channel header (RFC 6423)
ACI : Adjacent Channel Interference / Access Control Instructions / American Competitiveness Initiative / Application-centric infrastructure (Cisco)
ACID : Atomicity, Consistency, Isolation, Durability / Automatic Copyright Infringment Detection / Analysis Console for Intrusion Databases
ACL : Access Control List / Advanced CMOS Logic
ACLU : American Civil Liberties Union
ACM : Address Control Message (ATM) / Association for Computing Machinery / Access Cost/Month
ACME : Automated Certificate Management Environment
ACN : Application Context Negotiation / Aircraft Classification Number
ACP : Administrative Contact Person / AIMUX Control Protocol (ATM) / Ancillary Control Program / Access Control Protocol / Atmospheric Chemistry Program / Allied Communication Publication
ACPA : Anti-Cybersquatting Consumer Protection Act
ACPI : Advanced Configuration and Power Interface (Intel)
ACR : Attenuation to Crosstalk Ratio / Access Card Reader / Active Cavity Radiometer / Additive Cell Rate (ATM) / Anonymous Call Rejection
ACS : Asynchronous Communication Server / Access Control System(Server) / Adjunct Computer Subsystem / American Chemical Society / Advanced Camera for Surveys / Auto Configuration Server
ACSE : Association Control Service Element
ACSI : Atari Computer System Interface
ACSM : Adobe Content Server Management / American Congress on Surveying and Mapping
ACT : Australia Central Time / Air Connected Terminal
ACTA : Anti-Counterfeiting Trade Agreement
ACTF : Accessibility Tools Framework
ACTS : Advanced Communications Technologies System / Satellite
ACU : Automatic Calling Unit / Alarm Control Unit
ADB : Apple Desktop Bus
ADC : Analog to Digital Converter / Apple Display Connector / Apple Developer Connection / Advanced Direct Connect (protocol)
ADCP : Acoustic Doppler Current Profiler / Analysis and Data Collection Plan
ADE : Apple Distinguished Educator
ADEL : Android Data Extractor Lite
ADF : Automatic Direction Finder / Automatic Document Feeder / Access control decision function / (Oracle) Application Development Framework / Aeronautical Data Format
ADFS : Active Directory Federation Services
ADG : Asymmetric Double Gate
ADIM : Association des Internautes Mécontents (be) / Association des Internautes Médiateurs (fr)
ADLU: Anomaly Detection and Location-attribution algorithm for UWB wireless sensor networks
AdMD : Administration Management Domain
ADN : Application Defined Networking
ADO : ActiveX Data Object
ADP : Automated Data Processing (LLC, previously known as Automatic Data Processing) / Attach Detection Protocol / Android Dev Phone
ADR : Advanced Digital Recording / Alternative Dispute Resolution / Automatic Document Recognition / Air Data Reference / Accord européen relatif au transport international des marchandises Dangereuses par Route
ADS : Automated Deployment Service / Astrophysics Data System / Automatic Dependent Surveillance / Alternate Data Stream / Anomaly-based detection system
ADSL : Asynchronous Digital Subscriber Line
ADSM : Advanced Distributed Storage Manager
ADSP : AppleTalk Data Stream Protocol / Author Domain Signing Practices (rfc 5617)
ADSU : ATM Data Service Unit / Alcatel Datacard System Upgrader
ADT : Application Development Tool / Atlantic Daylight Time / Analog Data Tape
AEAD : Authenticated Encryption with Associated Data
AEBS : Airport Extreme Base Station (Apple)
AEP : AppleTalk Echo Protocol
AERO : Asymmetric Extended Route Optimization (rfc 6706)
AES : Advanced Encryption Standard / Audio Engineering Society / Application Environment Specification / Auger Electron Spectroscopy / Atomic Emission Spectroscopy
AET : Australia Eastern Time
AEW : Airborne Early Warning
AFA : Association des Fournisseurs d'Accès (français)
AFAP : Atomic and Fair Anonymous Protocol
AFBR : Address Family Border Router (RFC 5565)
AFC : Automatic Frequency/Flight/flow Control / Automatic Font Change / Angled Flat polished Connector / Alkaline Fuel Cell / Analyse Factorielle des Correspondances
AFD : Access For DOS (Ungermann-Bass) / Automatic File Distribution / Ancillary Function Driver
AFDS : Autopilot Flight Director System
AFH : Adaptive Frequency Hopping
AFI : Authority and Format Identifier
AFIS : Automated Fingerprint Identification System
AFM : Atomic Force Microscope / Adobe Font Metrics
AFN : Advanced Fiber Network / Air Force Network
AFP : AppleTalk Filing Protocol / Application Firewall Pack / Advanced Function Printing / Air Force Program / Administradoras de Fondos de Pensiones
AFS : Automatic Flight System / Andrew File System
AFT : Advanced Fault Tolerance / Authenticated Firewall Traversal (IETF) / Automatic fine tuning
AFTN : Aeronautical Fixed Telecommunication Network
AFTR : Address Family Transition Router
AFUL : Association Francophone des Utilisateurs de Logiciels Libres
AFW : Access For Windows (Ungermann-Bass)
AGC : Automatic Gain Control / Asynchronous Group Communication
AGCS : Air Ground Communications System
AGE : Access Gateway Exchange / Auxiliary Ground Equipment
AGP : Accelerated Graphics Port / Add Grace Period
AGPL : GNU Affero General Public License
AGPS : Assisted GPS
AGRS : Active GPS Reference System
AGT : Argentina Standard Time
AGV : Automatic Guided Vehicle
AHCC : Ad Hoc Copyright Coalition
AHCI : Advanced Host Controller Interface
AHIP : Asynchronous Host Interface Protocol
AHT : Apple Hardware Test
AIA : Application Integation Architecture (Oracle)
AICK : Apple Internet Connexion Kit
AIFF : Audio Interchange File Format
AIIM : Association for Information and Image Management
AIM : Adaptive Internetwork Management / ATM Inverse Multiplexer / AOL Instant Messenger / Airman's Information Manual / Alternative Investment Market / Automatic Identification and Mobility
AIMD : Additive Increase, Multiplicative Decrease
AIML : Artificial Intelligence Markup Language
AIMS : Apple Internet Mail Server / Activity Information Management System
AIN : Advanced Intelligent Network
AIP : ATM Interface Processor / Aeronautical Information Publication
AIR : Adobe Integrated Runtime
AIRS : Amateur-radio IP Routing System
AIS : Alarm Indication Signal / Automatic Identification System / Aeronautical information service
AISI : African Information Society Initiative
AISS : Apple Internet Server Solution
AIX : Advanced Interactive eXecutive (IBM Unix)
AJAX : Asynchronous JavaScript and XML
AKA : Authentication and Key Agreement (UMTS)
AKI : Authority Key Identifier
ALAP : AppleTalk Link Access Protocol
ALC : Asynchronous Layered Coding (rfc 5775, 5776) / Accounting legend code
ALDT : Alaska Daylight Time
ALG : Application Layer Gateway
ALI : ATM Link Interface / Automatic Location Identification
ALM : Analog Line Module / Application Lifecycle Management
ALOHA : Additive Links On-line Hawaii Area (rfc 829)
ALPN : Application-Layer Protocol Negotiation (rfc 7639)
ALS : Application Layer Structure
ALT : Alternative Logical Topology (rfc 6836)
ALTO : Application-Layer Traffic Optimization (rfc 5693, 6708)
ALU : Arithmetic Logic Unit
AMA : Ask Me Anything
AMBR : Aggregate Maximum Bit Rate
AMC : Alternative Media Connector / Adaptative Modulation and Coding / Air Mobility Command
AMDB : Airport Mapping Data Base
AME : Accessed Managed Environment
AMES Aerospace, Marine and Electronic Services (Canada)
AMF : Action Message Format
AMGI : Audio management information
AMHS : Aeronautical Message Handling System
AMI : Alternate Mark Inversion / Advanced Metering Infrastructure
AML : Arc Macro Language
AMP : Audio Mpeg Player / Authentication and key agreement via Memorable Passwords / Accelerated Massive Parallelism / Advanced Malware Protection / Accelerated Mobile Pages
AMPL : A Mathematical Programming Language
AMPP : Application Management and Provisioning Platform
AMPS : Advanced Mobile Phone System (800 MHz) / American Mobile Phone Service
AMQP : Advanced Message Queuing Protocol
AMR : Adaptive MultiRate codec (EDGE)
AMRF : Accès Multiple par Répartition des Fréquences
AMRT : Accès Multiple à Répartition dans le Temps
AMS : Advanced Memory Scanning / Address Management System / Acces Management System / Alert Management System / Acute Mountain Sickness / Administrative Management System / American Meteorological Society
AMSC : American Mobile Satellite Corporation
AMT : Amazon Mechanical Turk / Address Mapping Table / Active Management Technology (Intel® AMT)
AMU : Automatic Maintenance Unit
ANAC : Automatic Number Announcement Circuit
ANAT : Alternative Network Address Types
ANDF : Architecture Neutral Distribution Format
ANFS : Aircraft Network and File Server
ANI : Automatic Number Identification
ANL : Argonne National Laboratory / Automatic Noise Limiter
ANPR : Automatic number plate recognition
ANR : Automatic Network Routing
ANS : American National Standard / Advance Notification Service (Microsoft)
ANSI : American National Standards Institute / Agence nationale de la sécurité informatique
ANT : Analysis of Network Traffic / Advanced Network Technology
AOC : Advice of Charge / Airline Operational Control / Admiral Overseas Corporation
AOCE : Apple Open Collaboration Environment
AODV : Ad-Hoc on Demand Distance Vector (Wi-Fi protocol; rfc 3561)
AOL : Airborne Oceanographic Lidar / America Online, Inc.
AOP : Aspect Oriented Programming
AOPR : Advanced Office Password Recovery (Elcomsoft)
AOR : Address-of-record
AOS : Alternate Operator Service
AOSP : Android Open Source Project
AOT : Ahead Of Time / Accumulated exposure Over a Threshold
APA : All Points Addressable
APAR : authorized program analysis report
APC : Access Point Challenge / AM Protocol Carrier / Amphenol Precision Connector / Angle Polished Connector / Association for Progressive Communications
APCM : Adaptive Pulse Code Modulation
APDA : Apple Programmers and Developpers Association
APEX : Application EXchange (rfc 3340) / Additive system of Photography EXposure / Accepted Practices Exchange
APFS : APple File System
API : Application Program Interface / Alphabet Phonétique International / Advance Passenger Information
APIC : Advanced Programmable Interrupt Controller
APIG : All Party Internet Group (UK)
APIS : Advanced Passenger Information Sytem
APK : (Android) Application Package file / Authenticated Public-Key
APL : A Programming Language / Applied Physics Laboratory / Apple Public License (Darwin/MacOS X Open-Source Project) / Approved Products List
APM : Advanced Power Management / Application Performance Management
APML : Attention Profiling Markup Language
APN : Access Point Name / Appareil photo numérique
APNIC : Asia Pacific Network Information Centre
APNS : Apple Push Notification Service
APO : Advanced Programming Option
APP : Atom Publishing Protocol (rfc 5023)
APPC : Advanced Program to Program Communication (IBM LU6.2)
APPN : Advanced Peer to Peer Networking
APR : Apache Portable Runtime / Apple Premium Reseller
APRP : Adaptive Pattern Recognition Processing (Wang)
APRS : Amateur Packet Reporting System / Automatic Position Reporting System
APS : Automatic Protection Switching / Advanced Photo System / American Physical Society / Application Platform Suite
APSD : Apple Push notification Service daemon
APSI : Application Program Service Interface
APT : Automatic Picture Transmission / Advanced Packaging Tool (Debian) / Advanced Persistent Threat
APU : Auxiliary Power Unit
APWG : Anti-phishing Working Group
AQM : Active Queue Management (RFC 4594)
ARA : Apple Remote Access
ARAD : Architected Rapid Application Development
ARAN : Authenticated Routing for Adhoc Networks
ARAP : AppleTalk Remote Access Protocol
ARB : Adaptive Rate-Based (congestion control; IBM) / Architecture Review Board
ARC : Advanced RISC Computing / Attached Resource Computer / Automatic Reference Counting / Advanced Routing Concepts / App Runtime for Chrome / Amateur Radio Club / Active Radio Control / Airborne Radio Communication / (NASA) Ames Research Center / Atlantic Rally for Cruisers / Archive (FileName Extension) / Action de Recherche Cooperative
ARCP : Automatic Router Configuration Protocol
ARCS : Advanced Reconfigurable Computer System / Aircraft Requirements Computer System / Automated Reject Control System / Admiralty Raster Chart Service
ARD : Apple Remote Desktop
ARF : Abuse Reporting Format (rfc 6650)
ARIA : Accessible Rich Internet Applications / Adaptive Radius Immune Algorithm (rfc 5794)
ARIB : Association of Radio Industries and Businesses/Telecommunication Technology Committee (ARIB/TTC - Japan)
ARIN : American Registry for Internet Numbers
ARIP : Access Router Information Protocol
ARJ : Archiving program by Robert K. Jung
ARK : Archival Resource Key
ARM : Asynchronous Response Mode / ARPANET Reference Model / Application Response Measurement / Address Range Mapping / Advanced RISC Machine / Automated Resource Manager / (Advanced Research Machines ™) / Atmospheric Radiation Measurement / Archives and Record Management
ARMS : Adjustable Rotating Mounting Solution
ARNS : AppleTalk Remote Network Server / Aeronautical Radio Navigation Service
ARP : Address Resolution Protocol / Aerodrome reference point
ARPA : Advanced Research Projects Agency (US DoD; now DARPA)
ARPU : Average Revenue Per User
ARQ : Automatic Repeat reQuest
ARS : Action Request System / Archive and Retrieval Subsystem
ART : Analysis and Real-Time (environment) / Adaptive Reclocking Technology / Autorité de Régulation des Télécommunications
ASA : Adaptive Simulated Annealing / American Standards Association (now ANSI) / Astronomical Society of the Atlantic / Acetyl Salicylic Acid / Adaptive Security Appliance (Cisco)
ASAP : Advanced Scripting and Application Platform (Ungermann-Bass) / As Soon As Possible / (OASIS) Asynchronous Service Access Protocol / AS(Autonomous systems)-Aware Peer-Relay Protocol / Adaptive ReServation and Pre-allocation Protocol / Associations of STAR Alliance Pilots
ASAR : Advanced Synthetic Aperture Radar
ASC : Anti-Spyware Coalition / Automatic Squelch Control
ASCE : Association Service Control Element
ASF : Automatic Sheet Feeding / Advanced Streaming Format (Microsoft) / Apache Software Foundation
ASFI : Accès sans fil à Internet
ASG : Analog Signal Generator
ASI : Asynchronous Serial Interface
ASIC : Application Specific Integrated Circuit / Association des Services Internet Communautaires / Auditor de Sistemas de Información Certificado
ASIN : Amazon Standard Identification Number
ASIO : Audio Stream Input/Output / Australian Security Intelligence Organisation
ASIP : Appleshare Internet Protocol / All-Source Imagery Processing System (USMC) / American Society for Industrial Security
ASIS : American Society for Industrial Security
ASK : Amplitude Shift Keying / Access Security Key
ASL : Advanced Script Language / Adaptive Speed Leveling™ (US Robotics) / Application Services Library / Age, Sex, Location
ASLM : Apple Shared Library Manager
ASLR : Address Space Layout Randomization
ASM : Assembler / Abstract state machine / Any-Source Multicast
ASMM : ATM Service Management Module
ASMO : Arab Standardization and Metrology Organization
ASMP : Apple Software Maintenance Program
ASN : Autonomous System Number / Abstract Syntax Notation / Appel sélectif numérique / Alcatel Submarine Network
ASN1 : Abstract Syntax Notation 1 (standard, ISO)
ASP : AppleTalk Session Protocol / Active Server Page (Microsoft) / Auxiliary Service Platform / Advanced Streaming Format / Average Selling Price / Application Service Provider / Attitude Sensor Package / Atmospheric Science Program / American selling price
ASR : Air Surveillance Radar / Air safety report / Automatic speech recognition
ASRG : Anti-Spam Research Group
AST : Average Seek Time / Application security testing / Array Self-Test / Atlantic Standard Time / Alaska Standard Time
ASTA : Anti-Spam Technical Alliance
ASTM : American Society for Testing and Materials
ASVD : Analog Simultaneous Voice and Data
ATA : Analog Telephone Adapter / Advanced Technology Attachment (IDE Interface) / Actual Time of Arrival / Airport Traffic Area / Air Transport Association / Anti-Theft Alarm
ATAG : Authoring Tool Accessibility Guidelines (from WCAG)
ATC : Air Traffic Control / ATM Transfert Capability
ATCS : Air Traffic Communication Station
ATD : Achromatic, Tritanopic and Deuteranopic
ATDM : Asynchronous Time-Division Multiplexing
ATE : Automatic Test Equipment / Asynchronous Terminal Emulation
ATIA : Assistive Technology Industry Association
ATIS : Alliance for Telecommunications Industry Solutions / Automatic Transmitter Identification System
ATL : Automated Tape Library / Active Template Library
ATM : Adobe Type Manager / Asynchronous Transfer Mode / Automatic Teller Machine
ATMI : Application Transaction Manager Interface
ATN : Aeronautical Telecommunications Network
ATP : AppleTalk Transaction Protocol / Adaptive Threshold Processor / Advanced Threat Protection
ATS : Automatic Telephone Switch / Apache Traffic Server / Apple Type Services / Automated Tuning System / Air Traffic Services / Applied Type System (language) / Applications Technology Satellite / Automated Tracking System / Average Terrestrial System / Alternative trading system / App Transport Security
ATSC : Advanced Television Standards Committee
ATSU : Air Traffic Services Unit
ATT : Abnormal Task Termination
ATU : Automatic Tuning Unit / Arab Telecommunications Union / Antenna Tuner Unit
ATV : Amateur Television
AUI : Attachment Unit Interface
AUM : Adobe Update Manager
AUP : Acceptable Use Policy
AURP : AppleTalk Update-based Routing Protocol
AUU : ATM User to User indication
AVC : Advanced Video Coding / Application visibility and control / Automatic Volume Control
AVCS : Admiralty Vector Chart Service
AVD : Alternate Voice and Data
AVDL : Application Vulnerability Description Language
AVF : AntiVirus Filtering
AVFS : A Virtual FileSystem
AVG : Anti-Virus Guard (Grisoft) / Algemene Verordening Gegevensbescherming (=GDPR; nl)
AVI : Audio Video Interleave (format and filename extension)
AVK : (Java) Application Verification Kit
AVL : Automatic Vehicle Location
AVP : Audio-Video Production / Attribute-Value Pair
AVQ : Adaptive Virtual Queue
AVR : Automatic Volume Recognition
AVS : Application Visualization System / APRS Vision System / Age Verification System / Audio Video Standard
AVSE : Audio Visual Sound Effect
AVUS : Anti-Virus Update Service
AWB : Analyst WorkBench / AirWay Bill
AWG : Arbitrary Waveform Generator / American wire gauge
AWS : Advanced Wireless Services / Apple Workgroup Server / Admin Web Server (interface) / Amazon Web Services
AWT : Abstract Windowing Toolkit (Java) / Agence Wallonne des Télécommunications
AXE : Advanced heX Editor
AXFR : Asynchronous Full Transfer Zone (DNS request)
AYT : Are You There
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BAC : Basic Access Control
BACP : (PPP) Bandwidth Allocation Control Protocol
BAF : Belgian anti-piracy federation
BAIR : Basic Artificial Intelligence Routine
BAP : (PPP) Bandwidth Allocation Protocol
BAS : Broadband Access Server
BASE : Bielefeld Academic Search Engine / Basic Analysis and Security Engine
Bash : Bourne-again shell
BATV : Bounce Address Tag Validation
BBC : British Butterfly Conservation / British Broadcasting Corporation
BBI : Broadband Internet
BBM : BlackBerry Messenger / Break Before Make (contact)
BBS : Bulletin Board Service / Blum Blum Shub (random generator) / Bubbling Brown Sugar (Duke Ellington) / Bibliothèques et Bibliothécaires Suisses
BBSM : (Cisco) Building Broadband Service Manager
BCAM : Basis Communication Access Method
BCA : Brand certification authority
BCC : Block Check Character / Blind Courtesy Copy / Blind Carbon Copy / Blatant Cisco Clone
BCD : Binary Coded Decimal
BCG : Bacille de Calmette et Guérin / Bearer Connection Group (rfc 3108) / Boston Consulting Group
BCH : Bose, Ray-Chaudhuri & Hocquenghem code
BCI : Binary Command Interpreter / Brand CRL identifier
BCL : Base Class Library / Biomedical Computer Laboratory / Batch Command Language / BroadCast Listener
BCM : Business Continuity Management / Broadcast Manager / Business Connect Mobile
BCP : Best Current Practice / Binary Communication Protocol / Business Continuity Planning
BCR : Bureau Communautaire de Reference / Binding Corporate Rules / Bar Code Reader / Basic Card Reader
BCRS : Busines Continuity and Recovery Services
BCS : Bar Code Sytem / Bull Cabling System / Block Check Sequence / Binary Compatibility Specification / British Computer Society / Boston Computer Society / Bandwidth Conservation Society / Bardeen, Cooper & Schrieffer (Supraconductivity theory)
BCSP : BlueCore Serial Protocol (Bluetooth protocol) / Board of Certified Safety Professionals
BCUG : Bilateral Closed User Group
BCV : Byte Code Verifier (Java)
BDB : Berkeley DataBase
BDDN : Broadband Data Dissemination Network
BDS : Buffer Data Structure
BDT : Bureau de Développement des Télécommunications (UIT-D)
BECN : Backward Explicit Congestion Notification (Frame Relay)
BEEP : Blocks Extensible Exchange Protocol
BEOL : Back-End-of-Line
BEQ : Broadband Edge QAM
BER : Bit Error Rate / Basic Encoding Rules
BERT : Body of European Regulators in Telecoms
BES : BlackBerry® Enterprise Server
BET : Break-Even Time
BEUI : Basic Extended User Interface
BFD : Bidirectional Forwarding Detection (rfc 5881)
BFO : Burst Frequency Offset / Beat Frequency Oscillator
BFER : Bit Forwarding Egress Router
BFIR : Bit Forwarding Ingress Router
BFR : Bit Forwarding Router / Brome flame retardant
BGAN : Broadband Global Area Network (Inmarsat)
BGN : Board on Geographic Names
BGO : Bi4 Ge3 O12 (Germanate scintillation detector)
BGP : Border Gateway Protocol
BHO : Browser Helper Objects
BIA : Business Impact Analysis
BIC : Bank Identifier Code
BICC : Bearer-Independent Call Control
BIDS : Broadband Internet Delivery System (HP)
BIER : Bit Index Explicit Replication (RFC 8279)
BIF : Binary Image Format
BIG : Broadband Internet Gateway / Brandweer Informatiecentrum Geel
BIH : Bureau International de l'Heure / Bump-in-the-Host (rfc 6535)
BIN : Bank Identification Number
BIND : Berkeley Internet Name Daemon
BIOS : Basic Input/Output System
BIS : Bande Intermediaire Satellite
BISDN : Broadband ISDN
BISS : Basic Interoperable Scrambling System (satellite signal)
BIST : Built-In Self-Test
BIU : Bus Interconnect Unit
BLDR : Belgian Long Distance Riding
BLE : Bluetooth low energy
BLL : Business Logic Layer
BLO : Binary Large Object
BLOB : Binary Large OBject (SQL/Java)
BLOC : Brightmail Logistical Operations Center
BLR : Boucle locale radio (WLL)
BLTE : Box Line Terminating Equipment
BLU : Bande Laterale Unique (SSB)
BLV : Board-Level Vectoring
BMC : Block Multiplexer Channel (IBM) / Belgian Mobility Card / Baseboard Management Controller
BMP : Batch Message Processing Program / Best Management (Manufacturing) Practice / Bitmap (FileName Extension) / (Unicode) basic multilingual plane
BMR : Broadband Multimedia-Service Router / Bare Metal Restore
BMT : Buffer Management Table
BNC : Bayonet Navy Connector / Bayonet Neill Concelman (connector) / Bachelor Network Computing
BND : BundesNachrichtenDienst
BNF : Backus-Naur Form
BNG : British National Grid
BNIX : Belgian National Internet eXchange
BNN : Boundary Network Node
BNS : Basic Network Services / Braille 'n Speak / ButterFly Network Solution (botnet)
BNU : Basic Networking Utilities
BOB : Break-Out Box
BOD : Biological Oxygen Demand
BOF : Buffer OverFlow
BOM : Begin of Message / Byte-Order Mark (UTF)
BOPS : Buffer Overflow Prevention System
BOS : Basic Operating System (AIX) / Bird Observation Service
BOSS : Biometric Optical Surveillance System
BOT : Begin of Tape / Build-Operate-Transfer
BPDU : Bridge Protocol Data Unit
BPEL : Business Process Execution Language
BPGL : Best Practice Guide Library
BPI : Bit per inch / British Phonographic Industry (Ltd, ass.)
BPL : Broadband over Power Line
BPM : Business Process Management
BPR : Business Process Redesign
BPS : Bit per second / Bureau of Product Standards (Philippines)
BPSK : Binary Phase Shift Keying
BPV : Bipolar Violation
BPWG : Best Practices Working Group (MWI)
BRAS : Broadband Remote Access Server
BRBL : Barracuda Reputation Block List
BRCM : Broadcom Corporation
BREW : Binary Runtime Environment for Wireless
BRI : Basic Rate Interface (ISDN)
BRIM : Bridge/Router Interface Module
BRL : Ballistic Research Laborator / Braille through Remote Learning
BRS : Basic Remote Support / Business Radio Solutions (KPN)
BRTP : Backup Restore Transfer Protocol
BSA : Business Software Alliance / Bank Secrecy Act
BSB : British Satellite Broadcasting / Blockade State Block (rfc 2209) / Back Side Bus
BSC : Binary Synchronous Communication / Base Station Controller (GSM) / Broadcasting Standards Commission (uk; now Ofcom)
BSD : Berkeley Software Distribution
BSDI : Berkeley Software Distribution, Inc.
BSI : British Standards Institute / Bundesamt für Sicherheit in der Informationstechnik / Boot-sector infector
BSM : Base Security Module / Base Station Manager
BSOD : Blue Screen of Death
BSON : Binary JSON
BSP : Binary Space Partition / Bundle Security Protocol (rfc 6257) / Board Support Package
BSR : Base Station Repeater
BSS : Base Station Subsystem / Backup System Services / Basic Service Set
BSSID : Basic Service Set IDentification
BST : British Standard Time / Bangladesh Standard Time / Basic Security Theorem
BTC : Belgian Translation Center / Base Transceivers Controller / Bitcoin
BTCO : Build-to-custom-order
BTMA : Busy Tone Multiple Access
BTO : Build-to-Order / Burst Timing Offset
BTS : Base Transceiver Station / Bug Tracking System / Bit Test & Set / Brevet de technicien supérieur
BTU : British Thermal Unit / Better They Understand
BTW : By the way
BTX : Balanced Technology Extended
BUC : Block UpConverter / Block underdetermined covariance
BUI : Browser User Interface
BUMS : BackUp in the Main Store
BUS : Broadcast Unknown Server
BUSS : Back Up Speed Scale
BVI : Bridge Group Virtual Interface
BWA : Broadband Wireless Acces
BWN : Backbone Wideband Network
BWO : Backward Wave Oscillator
BWR : Boiling Water Reactor
BWS : Bad WhiteSpace
BWT : Bing Webmaster Tools
BYOD : Bring Your Own Device
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CAA : Certification Authority Authorization
CAB : Central Africa Backbone
CABP : Context-Aware Broadcasting Protocol
CAC : Customer Assistance Center / Carrier Access Code / Computer Advisory Committee / Campaign Against Censorship / Cyberspace Administration of China
CAD : Computer Aided Design / Computer Aided Dispatching / Cash Against Documents
CAE : Common Application Environment / Covering Area Exchange / Computed Aided Engineering
CAEL : Computer Animation Environment Language
CAGR : Compound annual growth rate
CAI : Computer Aided Industry / Common Air Interface / Chaotic Automation Islands / Controlled Auto Ignition
CAIN : Computer Algebra Information Network
CAL : Computer Aided Learning / Client Access Licenses
CALEA : Communications Assistance for Law Enforcement Act
CALS : Computer Aided Logistics and Supply
CAM : Cellular Automata Machine / Computer Aided Manufacturing / Comp Ad Management / Content Addressable Memory / Constant Awake Mode / Child-proof authentication for MIPv6
CAMAC : Computer-Aided Measurement and Control
CAMEL : Customized application of mobile enhanced logic
CAN : Controller Area Network / Customer Access Network / Candidate Access Network
CAO : Computer Aided Office / Conception Assistée par Ordinateur / Criminalité Assistée...
CAP : Computer Aided Planning / Carrier(less) Amplitude Phase (Modulation) / Cordless (terminal mobility) Access Profile / Candidate Attachment Point (RFC 5836) / Contention Access Period
CAPE : Computer Aided Post in Europe
CAPI : Common Application Programing Interface / Cryptographic Application Programming Interface
CAPS : CESG Assisted Products Scheme (UK)
CAQ : Computer Aided Quality
CAR : Channel Address Register / Central Access Routing / Capability Assessment for Readiness / Collect and Return
CARE : Computer Aided Reverse Engineering
CARP : Cache Array Routing Protocol
CART : Computer Analysis Response Team (FBI) / Cloud and Radiation Testbed
CAS : Chemical Abstract Service / Column Address Select / Central Authentication Service / Channel-Associated Signaling / Content Addressable Storage / Calibrated air speed
CASB : Cloud Access Security Brokers
CASE : Computer Aided Software Engineering / Context Adaptive Scanning Engine / Common Application Service Element
CASL : CrossTalk Application Script Language
CAST : Center for Applied Special Technology / Collaboratory for Atmospheric Science and Technology / Collaborative Agents for Simulating Teamwork / Carlisle Adams & Stafford Tavares algorithms
CAT : Common Authentication Technology / Computerised Axial Tomography / Clear Air Turbulence / Central African Time / Computer Aided Translation
CATV : Community Antenna Television
CAU : Control Access Unit / Concentrator Access Unit / Customer Access Unit / Channel Attachment Unit (Tandem)
CAV : Constant Angular Velocity
CBA : Certificate Based Authentication
CBB : Common Backbone network
CBC : Cipher Bock Chaining / Canadian Broadcasting Corporation
CBDS : Connectionless Broadband Data Service
CBE : Computer Based Education
CBHD : China Blue High-Definition (formerly CH-DVD)
CBHE : Compressed Bundle Header Encoding (rfc 7116)
CBIR : Content-Based Image Retrieval
CBL : Computer Based Laboratory / Convective Boundary Layer / Composite Blocking List
CBM : Condition-based Maintenance
CBMS : Computer Based Messaging
CBOR : Concise Binary Object Representation (rfc 7049)
CBP : Computer Based Presentation / College Bescherming Persoonsgegevens (nl) / (U.S.) Customs and Border Protection
CBR : Constant Bit Rate / Case Based Reasoning / Chemical, Biological, and Radiological
CBS : COTS-Based Systems / Call Book Server
CBT : Core Based Tree
CBTC : Communication based train control (IEEE 1474)
CBW : Crypt Breaker's Workbench / Chemical and biological weapons
CBX : Computerized Branch eXchange
CCA : DVD Content Control Association / Clear channel assessment / Chosen Ciphertext Attack / Cardholder certification authority
CCAF : Call Control Agent Function
CCB : Channel Control Block
CCC : Channel Control Check / Contra Costa County (California) / Chaos Computer Club / Car Connectivity Consortium
CCCF : Chaos Computer Club France
CCCV : Constant current, constant voltage (charging lithium) / Control C Control V
CCD : Charge Coupled Device
CCDP : Communication Capabilities Development Programme (uk)
CCF : Central Control Function
CCI : Copie Carbone Invisible (=BCC)
CCIA : Computer and Communications Industry Association
CCIE : Cisco Certified Internetwork Expert
CCIP : Cisco Certified Internetwork Professional
CCIR : Comité Consultatif International des Radiocommunications
CCIS : Common Channel Interoffice Signaling
CCK : Complementary Code Keying / Connectivism and Connective Knowledge
CCL : Common Command Language / Communication Control Language
CCM : Customer Contact Manager / Community climate model / Comment ça Marche / Commerce Chain Management / Counter with CBC-MAC (mode)
CCMI : Center for Communications Management Information
CCMP : Counter-Mode CBC-Mac Protocol(IEEE 802.11i) / Centralized Conferencing Manipulation Protocol (rfc 7082)
CCNA : Cisco Certified Network Associate
CCNC : Common Channel Network Control
CCP : Communication Control Program / Calibrator Characteristic Parameters / Code of Criminal Procedure
CCR : Commitment, Concurrency and Recovery
CCS : Continuous Commercial Service / Calculus of Communicating Systems / Coded character set / ChangeCipherSpec / Combining character sequence / Computer and Communications Security / Central Computing System
CCSA : China Communications Standards Association / Checkpoint Certified Security Administrator
CCSP : Cisco Certified Security Professional / Climate Change Science Program / Centres de Compétence, de Service et de Production
CCT : Channel Controller Table / Center for Clean Technology
CCTA : Central Computer and Telecommunications Agency (UK)
CCTV : Closed Circuit Television / China Central Television
CCU : Channel Controller Unit / Computer Crime Unit / Camera Control Unit
CCV : Credit Card Verification
CCW : Channel Control Word / CounterClockWise
CDA : Compound Document Architecture / Cache Disk Array / Communications Decency Act / Compact Disc Audio / Command and Data Acquisition
CDC : Century Date Change / Channel Data Check / Connected Device Configuration / Center for Disease Control / Conservation Data Center / Cult of the Dead Cow
CDDA : Compact Disk Digital Audio
CDDB : (Gracenote) Compact Disk Data Base
CDDI : Copper Distributed Data Interface
CDDL : Common Development and Distribution License
CDE : Common Desktop Environment
CDF : Compound Document Format / Channel Definition Format / Cumulative Distribution Function
CDFS : CD-ROM File System (ISO 9660)
CDI : Course Deviation Indicator / Compact Disk Interactive
CDIA : Certified Document Imaging Architect
CDIS : Cross Domain Information Sharing / CCF Display and Information System / Custom Design and Installation Specialist
CDL : California Digital Library / Comite de Liaison des industries de metaux non-ferreux de la CEE
CDLC : Connected Limited Device Configuration
CDM : Chemistry Data Management / Cold Dark Matter / Communications/Data Manager / Content Decryption Module
CDMA : Code Division Multiple Access / Cyber Defence Management Authority
CDMC : Comité Directeur sur les Médias et les nouveaux services de Communication (EU) / Classical discrete memoryless channel
CDN : Content Delivery Network
CDNI : Content Distribution Network Interconnection (rfc 6707)
CDP : Cisco Discovery Protocol / Command and display program / Continuous Data Protection
CDPD : Cellular Digital Packet Data
CDR : Communicable Disease Report / Call Detail Reporting / Committed Data Rate / Call Data Records / Central Data Recorder / Compact Disc Recordable / CoreDraw (file extension)
CDS : Catalog of Data Sources / Command and Data Subsystem / Content Data Store / Cockpit Display Systems / Certificate Distribution System / Cooperative Dependent Surveillance / Counterfeit Deterrence System / Coordination data structures / Credit default swaps
CDSA : Common Data Security Architecture
CDSL : Connect Data Set to Line (v24:108.1) / Consumer DSL
CDT : Controller Device Table / Center for Democracy and Technology / Central Daylight Time
CDU : Central Display Unit
CDV : Cell Delay Variation
CEDT : Central European Daylight Time
CEF : Character encoding form
CEH : Certified Ethical Hacking
CEHA : Certified Ethical Hacking Associate
CEK : Content-Encryption Key
CEI : Commission Electrotechnique Internationale
CEIS : Center for European Integration Strategies / Conférences et Etudes Internationales en Sorbonne / Compagnie européenne d'intelligence stratégique
CELP : Code Excited Linear Prediction
CELT : Constrained-Energy Lapped Transform (codec)
CEMA : Consumer Electronics Manufacturers Association / Connection Establishment for Media Anchoring (rfc 6714)
CEN : Comité Européen de Normalisation
CEOS : Committee on Earth Observing Sensors
CEPD : Contrôleur Européen de la Protection des Données
CEPT : Conference Européenne des Postes et Télécommunications (ERC)
CER : Canonical encoding rules
CERT : Computer Emergency Response Team
CES : Character encoding scheme / Control Element Separation / Consumer Electronics Show
CESA : Cyberspace Electronic Security Act
CESG : Communications Electronic Security Group (UK)
CEST : Central European Standard Time
CET : Central European Time / Common External Tariff
CETS : Child Exploitation Tracking System / Computing and Educational Technology Services
CFA : Crossed Field Amplifier
CFAA : Computer Fraud and Abuse Act
CFB : Cipher FeedBack / Customer Quality Feedback / Call Forwarding Busy
CFC : ChloroFluoroCarbon / Combined Federal Campaign (for charitable contributions)[USA] / Centre Français d'exploitation du droit de Copie
CFE : Control Flow diagram Editor
CFM : Connectivity Fault Management / Code Fragment Manager / Cubic Feet per Minute / Compounded Frequency Modulation / Confirm(ed) / Chlorofluoromethane
CFML : ColdFusion Markup Language
CFMR : Coherent Frequency Multiplexed Radar
CFNR : Call Forwarding on No Reply
CFP : Computers, Freedom and Privacy / Contention Free Period
CFRG : Crypto Forum Research Group
CFS : Clustered File System / Code Free Site
CFU : Call Forwarding Universal
CFV : Call for Vote
CFWS : Comment Folding WhiteSpace (rfc 5322 syntax)
CGA : Colour Graphics Array / Cryptographically Generated Address
CGI : Common Gateway Interface / Conseillers en Gestion et Informatique (groupe)
CGM : Computer Graphics Metafile / Corrected GeoMagnetic
CGMS : Copy Generation Management System / Coordination Group for Meteorological Satellites
CGN : Carrier-Grade NAT (rfc 5684,7021)
 
CGS : Common Gateway System / Cum Grano Salis ;-)
CHAM : Common Hacking and Attack Methods
CHAP : Challenge Handshake Authentication Protocol (rfc 1994)
CHAT : Conversational Hypertext Access Technology
CHES : Cryptographic Hardware and Embedded Systems
CHK : Content Hash Key
CHM : Compiled HTML / compressed html help file format (filename extension)
CHO : Continuous Hours of Operation
CHRP : Common Hardware Referefce Platform
CHS : Cylinder/Head/Sector (addressing)
CHUD : Computer Hardware Understanding Developer tools
CIA : Confidentiality, Integrity, and Availability
CIAC : Computer Incident Advisory Capability
CIAM : Certified Identity and Access Manager
CIAO(TM) : Component Integrated ACE ORB
CIB : Compliance and Information Bureau (FCC)
CICC : Custom Integrated Circuits Conference
CICS : Customer Information Control System
CID : Content-ID / Card Identification number / Critical Incident Detection
CID(i) : Confidentialité, Intégrité, Disponibilité, (Imputabilité)
CIDR : Classless Inter-Domain Routing (RFC 1517-1520)
CIE : Commission Internationale de l'Eclairage
CIF : Common Industry Format / Cost, Insurance & Freight
CIG : Computational Intelligence and Games / Canon Image Gateway
CIF : Cloud Industry Forum
CIFS : Common Internet File Services (Microsoft/Sun; anc. SMB)
CIGS : Copper indium gallium selenide (Solar PowerFilm)
CIIP : Critical Information Infrastructure Protection
CIK : Crypto Ignition Key / Central Index Key
CIM : Computer Integrated Manufacturing / Compuserve Information Manager / Common Information Model
CIMT : Conditonal Inversion with Master Transition
CIP : Channel Interface Processor / Critical Infrastructure Protection / Commission for Intellectual Property
CIPA : Children's Internet Protection Act (CHIPA)
CIR : Commited Information Rate
CIRT : Computer Incident Response Team
CIS : Center for Internet Security / Criminal Intelligence Section / Cyber Intelligence Section
CISE : Computer and Information Science and Engineering (NSF Directorate)
CISA : Certified Information Systems Auditor
CISC : Complex Instruction Set Computer
CISM : Certified Information Security Manager
CISO : Compressed ISO CD image / Chief information security officer
CIU : Communications Interface Unit (Tandem)
CIX : Commercial Internet eXchange
CJC : Conditional Job Control
CJK : Chinese, Japanese, and Korean (characters)
CKD : Control, Key, Data
CKL : Compromised key lists
CLAES : Cryogenic Limb Array Etalon Spectrometer
CLAS : Crypto-Logica Advanced Stream
CLC : Connection Layer Control
CLDR : Common Locale Data Repository (Unicode)
CLEC : Competitive Local Exchange Carrier
CLF : Common Log Format (rfc 6873)
CLI : Command Line Interpreter / Call Level Interface / Calling Line Identification / Common Language Infrastructure / Compare Logical Immediate (assembler instruction)
CLIP : Calling Line Identification Presentation (ISDN)
CLIR : Calling Line Identification Restriction
CLK : Chinese Language Kit
CLLM : Consolidated Link Layer Management (Frame relay networks)
CLNP : ConnectionLess Network Protocol
CLNS : ConnectionLess Network Service
CLOB : Character Large OBject (SQL/Java)
CLOS : Common Lisp Object System
CLP : Cell Loss Priority (ATM) / Classification, Labelling and Packaging
CLR : Common Language Runtime
CLS : Common Language Specification / Collecte Localisations Satellites
CLSF : ConnectionLess Support Function
CLT : Communication Link Table
CLUF : Contrat de Licence d'Utilisateur Final
CLV : Constant Linear Velocity
CMA : Chemical Manufacturer's Association / Cross Mobile Application / Chosen Message Attack
CMAC : Cipher-based message authentication code (rfc 4493, 4494, 4615, 4635)
CMC : Central Maintenance Computer
CMCI : Cable Modem to CPE Interface
CMDB : Configuration Management Data Base
CMDS : Centrally Managed Desktop Security
CME : Center for Media Education
CMF : Content Monitoring and Filtering
CMG : Course Made Good
CMIP : Common Management Information Protocol
CMIS : Common Management Information Services / Content Management Interoperability Standard / Corporate Manufacturing Information System
CMJN : Cyan, Magenta, Jaune, Noir (=CMYK) CML : Chemical Markup Language
CMLC : Cable modem Line Card
CMM : Color Management module / Capability Maturity Model
CMMI : Capability Maturity Model Integration
CMNS : Connection-Mode Network Service
CMOS : Complementary Metal Oxide Semiconductor
CMP : Cellular MultiProcessing (Unisys) / Certificate Management Protocol / Compliance Management Platform / Cluster Management Protocol (Cisco)
CMR : Conférence Mondiale des Radiocommunications / Clear Motion Rate
CMS : Conversational Monitor System / Catalog Management System / Cabling Management Software / Content Management System / Cryptographic Message Syntax (rfc 5652, 5911, 6010, 6032) / CDMA mobile system / Composant Monté en Surface / Compact Muon Spectrometer
CMTS : Cable Modem Termination System
CMU : Communications Management Unit / Converter-Multiplexer Unit
CMX : Corel Presentation Exchange (filename extension)
CMYK : Cyan, Magenta, Yellow, blacK
CNA : Certified Netware Administrator
CNC : Computer Numerical Control / CnC = Command and Control
CNCI : Comprehensive National Cybersecurity Initiative
CNE : Certified Network Engineer / Computer network exploitation
CNIL : Commission nationale informatique et libertés (Fr)
CNIU : Customer Network Interface Unit (DQDB;SMDS)
CNM : Communication Network Management / Customer Network Management
CNN : Constrained-Node Networks (rfc 7228) / Cable Network News / Convolutional neural network
CNR : Click 'n Run
CNRI : Corporation for National Research Initiatives
CNS : Communications, Navigation and Surveillance
CNSA : Commercial national security algorithm
CNT : Coaxial Network Termination / Canada Newfoundland Time
COBRA : Consultative, Objective and Bi-functional Risk Analysis
COC : Code of Conduct
COCOT : Customer-Owned Coin-Operated Telephone
CODE : Campaign for an Open Digital Environment
COE : Common Operating Environment (HP)
COG : Course Over Ground
COI : Central Office of Information
COLD : Computer Output to Laser Disc
COLP : COnnected Line identification Presentation (ISDN)
COM : Computer Output to Microfiche / Continuation of Message / Component Object Model
CONE : Common OSI Network Environment
CONS : Connection-Oriented Network Service
COP : Character-Oriented Protocol
COPA : Child Online Protection Act
COPE : Corporate Owned, Personally Enabled / Communications Opportunity, Promotion and Enhancement Act of 2006
COPP : Certified Output Protection Protocol
COPS : Computer Oracle and Password System
COR : Core Onion Router
CORBA : Common Object Request Broker Architecture
CORS : Continuously Operating Reference Stations (NGS) / Cross-Origin Resource Sharing
COS : Corporation for Open Systems / Code Operated Switch / Class of Service / China Operatig System
COSE : Common Open Systems Environment / CBOR Object Signing and Encryption (rfc 8230)
COTS : Commercial off-the-shelf
COW : Copy-on-write
CPA : Critical Path Analysis / Coût par Acquisition (Cost per Action) / Chosen Plaintext Attack / Commercial Product Assurance.
CPAN : Comprehensive Perl Archive Network
CPAV : CentralPoint® AntiVirus
CPC : Channel Program Check / Courtesy Program Committee (for DX Tests) / Collaborative Product Commerce / Cost-per-click / Climate Prediction Center
CPCS : Common Part Convergence Sublayer (ATM)
CPD : Common Private Disk
CPDP : Computer, Privacy & Data Protection
CPE : Cooperative Processing Environment / Customer Premise Equipment
CPF : Control Program Facility
CPGA : Ceramic pin grid array
CPGZ : CPIO GunZip
CPHA : Clock Phase
CPI : Common Program Interface / Capability and Preference Information
CPIO : Central Processor input-output / Copy In, Copy Out (archive format)
CPK : Client Public Key
CPL : Courant porteur en ligne / Coût par Lead / Common Public License / Control PaneL routine (MS Windows filename extension)
CPLD : Complex programmable logic device
CPM : Critical Path Method / Control Program for Microcomputers (or CP/M) / Corporate Performance Management / Coût pour Mille / Continuous phase modulation
CPN : Cisco Powered Network
CPNI : Calling Party Number Identification / Customer proprietary network information / Centre for the Protection of National Infrastructure
CPOL : Clock Polarity
CPP : Customer Preview Program (Microsoft) / (IP) Connectivity Provisioning Profile (rfc 7297)
CPRM : Content Protection for Recordable Media
CPS : Characters Per Second / Certification Practice Statement / Carrier Pre-Selection
CPSI : Configurable PostScript Software Interpreter
CPSR : Computer Professionals for Social Responsibility
CPT : Central Processor Test
CPU : Central Processing Unit / Connectix Powerbook Utilities
CQF : Customer Quality Feedback
CQFP : Ceramic Quad Flat Package
CRC : Cyclic Redundancy Check / Content Rules Console
CRD : Central Reprographic Department / CorelDraw (fileneme extension)
CRDB : Customer Reference DataBase
CRDC : Common Reference Data Center (telephone numbers)
CREN : Computer Research and Education Network
CRL : Certificate Revocation List
CRLF : Carriage Return - Line Feed (EOL)
CRLI : Consecutive Run Length Insertion
CRM : Communication Resources Manager / Customer Relationship Management / Collision risk model
CRN : Communications Research Network
CRPA : Controlled Radiation Pattern Antenna
CRQ : Continuous Repeat reQuest
CRS : Computerized reservation system / Consumer Radio Service / Common Reference String / citron, rhum, sucre / Catholic Relief Services / Customer Relationship Services / Cloud services router / (US) Congressional Research Service
CRT : Cathode Ray Tube / Computer remote terminal
CSA : Cooperative Systems Architecture (Tandem) / Custom Support Agreement (Microsoft) / Common Scrambling Algorithm / Cloud Security Alliance / Canadian Space Agency / Conseil supérieur de l'audiovisuel / Chemical Safety Audit / Common Standard Aircraft / Certified Security Ananlyst
CSC : Card Security Code / Current Source Converter / Content Security and Control
CSCW : Computer Supported Cooperative Work
CSD : Circuit Switched Data
CSDN : Circuit Switched Data Network
CSDS : Common Sense Deficiency Syndrome
CSFB : Circuit Switch Fall-Back
CSFR : Cross-site request forgery
CSM : Central Site Modem / Command and Service Module
CSMA : Carrier Sense Multiple Access /CA Collision Avoidance /CD Collision Detection (Ethernet)/CR Collision Resolution (ISDN) / Centre for Surface and Materials Analysis
CSMU : Crash-Survivable Memory Unit
CSO : (filename extension) for CISO, Compressed ISO CD Image / Chief Security Officer
CSOR : Computer Security Objects Register
CSP : Company Security Policy / Communications Service Provider / Cryptographic Service Provider / Cloud Service Provider / Credential Service Provider / Communicating Sequential Processes / Chip Scale Package / Certified Safety Professional / Content Security Policy / Concentrated solar power
CSQ : Carrier Squelch
CSR : Control and Status Register / Certificate Signing Request / Communicable Disease Surveillance and Response (WHO) / Corporate social responsibility
CSRF : Cross-site request forgeries (=XSRF)
CSRG : Computer Systems Research Group (University of California)
CSS : DVD Content Scrambling System / Cascading Style Sheets / Cross-Site Scripting / Central Security Service / Cisco Security Solutions
CSSH : Cluster SSH
CST : Central Standard Time
CSU : Common Support Unit / Certificate Signing Unit / Channel Service Unit / Customer Service Unit
CSV : Comma Separated Value (rfc 4180)
CTAP : Client to Authenticator Protocol
CTB : Communication ToolBox
CTC : Comments- Technical Contributions
CTCP : Communication and Transmission Control Program
CTDM : Compressed Time Division Multiplexing
CTEC : (Microsoft) Certified Technical Education Center
CTF : Contrast Transfer Function / Community Translation Framework / Computer to Film / Capture the Flag (chalenge) / (filename extension: catalog files MGI)
CTI : Computer-Telephony Integration
CTIA : Cellular Telecommunications and Internet Association
CTL : Certificate Trust List
CTM : Cryptologic Technician Maintenance
CTN : Customer Telephone Number / (Résitance à) Coefficient de Température Négatif
CTP : Community Technology Preview
CTR : Click-through rate / Comité Technique radiophonique / Counseling, Testing and Referral / Counter-mode encryption
CTS : Clear To Send (RS232:5) / Conformance Testing Service / Common Technical Specification / Common Type System / ciphertext stealing
CTSS : Compatible Time Sharing System / Cray Time Sharing System
CUAE : Cisco Unified Application Environment
CUCM : Cisco Unified Communications Manager
CUD : Call User Data
CUDA : Compute Unified Device Architecture
CUG : Closed User Group
CUI : Character User Interface
CULV : Consumer Ultra-Low Voltage
CUPS : Common Unix Printing System
CURL : Client for URL
CUT : Coordinated Universal Time
CVA : Critical Vulnerability Analysis / Cyphertext Validity Attack
CVC : Card Verification Code
CVD : Chemical Vapour Deposition / Compact Video Disk / Constant Velocity Drive
CVE : Common Vulnerabilities and Exposures
CVP : Coefficient de Variation du Patrimoine
CVR : Compakt VorRechner / Cockpit voice recorder / Computer Voice Response
CVS : Concurrent Versions System / Code Versioning System / Computer Vision Syndrome
CVSS : Common Vulnerability Scoring System
CVT : Current Volume Table / Clear Video Technology
CVV2 : Credit Verification Value 2
CWDM : Coarse Wave Division Multiplexing
CWE : Common Weakness Enumeration (see MITRE)
CWIS : Campus-Wide Information System
CWM : Common Warehouse Metamodel
CWML : Compact Wireless Markup Language
CWMP : CPE WAN Management Protocol
CWS : Client Web Server (interface)
CWT : CBOR Web Token (rfc 8392)
CYOD : Choose Your Own Device
CYRF : Choose Your Response Function
CZDS : Centralized Zone Data Service
(Retour au début)

DAA : Data Access Arrangement / Direct Anonymous Attestation
DAAC : Distributed Active Archive Center
DAB : Disk Access Buffer / Digital Audio Broadcasting / Distributeur automatique de billets
DAC : Dynamic Access Control / Dynamic Astigmatism Control / Digital to Analog Converter / Data Acquisition and Control / Dual Attached Concentrator / Delayed Action Command / Discretionary Access Control
DACL : Discretionary Access Control List
DACS : Digital Access Cross-connect System / Data Acquisition and Control Subsystem
DAD : Duplicate Address Detection (RFC 4862, 7527)
DADS : Data Archive and Distribution Center
DAE : Digital Audio Extraction (™ Digidesign)
DAG : Directed Acyclic Graph (rfc 6553)
DAGR : Defense Advanced GPS Receiver
DAI : Digital Author Identifier
DAL : Data Access Language
DAM : Data Access Manager / Digital Asset Management / Direction des applications militaires
DANE : DNS-based Authentication of Named Entities
DANTE : Delivery of Advanced Network Technology to Europe
DAO : Disk at-once / Decentralised Autonomous Organisation
DAP : Directory Access Protocol / Document Application Profile
DARP : Digital/Audio Reserve Project
DART : Dynamic Advertising Reporting & Targeting / Disaster Assistance Response Team / Deep-Ocean Assessment and Reporting of Tsunamis
DAS : Digital Analysis System / Domain Availibity Service / Dual Attachment Station / Dynamic Access Switching / Dynamically Assigned Socket / Direct Attached Storage / Distributed Antenna System / Driver Assistant System / Débit d'Absorption Spécifique
DASD : Direct Access Storage Device
DAT : Digital Audio Tape / Dynamic Address Translation
DATE : Dedicated Access to X25 Transport Extension
DAU : DNSSEC Algorithm Understood (rfc 6975)
DAV : Distributed Authoring and Versioning / Digital Audio Video
DAW : Digital Audio Workstation
DBA : DataBase Administrator
DBAN : Darik's Boot and Nuke
DBCS : Double-byte character set
DBF : dBase Files (filename extension)
DBH : Data Base Handler
DBI : DataBase Independent
DBIR : Data Breach Incident Report
DBLP : Digital Bibliography and Library Project
DBML : DataBase Markup Language
DBMS : DataBase Management System
DBN : Diagnostic Block Number
DRBG : (Elliptic Curve) Deterministic Random Bit Generation
DBS : Direct Broadcast Satellite
DBSS : DialBack Security System
DCA : Document Content Architecture / Digital Communications Associates / DVD+RW Compatibility Alliance / Distribution Component Architecture / Defense Communications Agency (now DISA) / DanChurchAid
DCAM : Data Communication Access Method / Direct Chip Attach Module
DCAT : Design, Components ,Assembly, Test
DCB : Dataset Control Block / Disk Coprocessor Board
DCC : Digital Compact Cassette / Data Country Code (atm) / Distributed Checksum Clearinghouses
DCCL : Detailed Country Code List
DCCP : Datagram Congestion Control Protocol (rfc 5634)
DCD : Data Carrier Detect (RS232:8)
DCDU : Datalink control and display unit
DCE : Data Communication Equipment / Distributed Computing Environment
DCF : Distribution Coordination Function / Design rule for Camera File system
DCI : Data Communation Interface / Display Control Interface / Digital Cinema Initiative
DCIM : Data Center Infrastructure Management / Digital Camera Internal Memory
DCL : DIGITAL Command Language
DCM : Data Communication Methods / Distributed Computing Model (BULL) / Device Communication Manager (SPECTRUM)
DCMI : Dublin Core Metadata Initiative
DCMS : Data Capture and Management System (IBM) / Defense COMSEC Material System
DCN : Digital Communications Network / Distributed Computer Network
DCOM : Distributed Component Object Model (Microsoft)
DCP : Digital Cellular Phone
DCR : design change request
DCS : Data Communication Services / Device Control String / Dynamic Channel Subsystem / Desktop Color Separation / Digital Camera System / Digital Communication Sytem (GSM 1800) / Digital Cross-connect System / Digital Coded Squelch / Double Channel Simplex / Departure Control System
DCT : Discrete Cosine Transform (H.263 Video coding) / Digital Capture Technology
DCTE : Data Circuit-Terminating Equipment (or DCE)
DCU : Digital Crime Unit
DDA : Distributed Data Access (BULL) / Dynamic Data Authentication / Digitally controlled Dynamic Astigmatism
DDC : Display Data Channel
DDCMP : Digital Data Communications Message Protocol
DDDL : Data Dictionary Definition Language
DDDS : Dynamic Delegation Discovery System (RFC 3401)
DDE : Distributed Debugging Environment / Dynamic Data Exchange
DDF : Digital Distribution Frame
DDI : Device Driver Interface / Direct Dialling In / Data Documentation Initiative
DDL : Data Definition Language / Direct Download Link
DDN : Defense Data Net
DDNS : Dynamic Domain Name System
DDoS : Distributed denial of service
DDP : Datagram Delivery Protocol / Direct Data Placement
DDR : Dial-on-Demand Routing / Digital Disk Recorder / Double Data Rate (RAM) / Device Description Repository
DDS : Digital Data System / Digital Data Storage (Sony format) / Digital Directory Service / Dataphone Digital Services / Data Dictionary System
DDSC : Dynamic Discrete Surround Circuit
DDSI : Dependability Development Support Initiative
DDT : Dichloro-Diphenyl-Trichloroethane / Distributed Debugging Tool / Digital Data Transmitter
DDTC : Digital Delay Time Calculator
DDU : Disk Drive Unit / Delivered Duty Unpaid
DEA : Data Encryption Algorithm / Distributed Environment for Administration / Drug Enforcement Administration / Digital Economy Act
DECT : Digital European Cordless Telephone
DEE : DatenEndEinrichtung
DEK : Data Encryption Key
DEM : Digital Elevation Model
DEP : Data Encrytion Peripheral / Data Execution Prevention
DER : Distinguished Encoding Rules
DES : Data Encrytion Standard / DiEthyl-Stilbestrol
DFA : DART for Advertisers
DFC : Decorrelated Fast Cipher
DFD : Data Flow Diagram / Design for Disassembly
DFDR : Digital Flight Data Recorder
DFE : DataFlow diagram Editor
DFF : Depth-First Forwarding (rfc 6971)
DFIR : Digital forensics and incident response
DFM : Deterministic flow marking
DFN : Digital Freedom Network
DFP : DART for Publishers
DFS : Distributed File System
DFT : Distributed Function Terminal / Drive Fitness Test
DFU : Device Firmware Upgrade / Directions For Use
DGA : Domain Generation Algorithm
DGPS : Differential GPS
DHA : Directory Harvest Attack
DHCP : Dynamic Host Configuration Protocol
DHP : Digitaal HandtekenPlatform / Diffie-Hellman problem
DHS : Department of Homeland Security / Data Handling System
DHT : Distributed Hash Table / Database Header Table
DHU : DS Hash Understood (rfc 6975)
DHWG : Digital Home Working Group
DIA : Document Interchange Architecture / Defense Intelligence Agency / Dedicated Internet Access
DIC : Differential Interference Contrast
DID : Direct Inward Dialling
DIDS : Distributed Intrusion Detection System
DIF : Data Interchange Format / Digital Interconnect Format / Distributed IPC Facility
DIFS : Distributed Inter Frame Space
DIG : Domain Information Groper / Dialogue of Internet Governance
DIL : Dual In Line
DIMM : Dual Inline Memory Module
DIN : Deutsches Institut für Normung / Digital Identity Network
DIO : DAG Information Object
DIP : Document Image Processing / Dual in-line package
DIS : Draft International Standard / Data and Information System / Digital Immune System (SARC)
DISA : Defense Information Systems Agency
DISC : Distributed Intelligent System Control
DISN : Defense Information System Network
DISP : Directory Information Shadowing Protocol
DISR : Descent Imager - Spectral Radiometer
DIT : Data Interchange Tool (VINES)
DIVX : Digital Video Express (not DivX)
DIW : D-Inside Wire
DIY : Do It Yourself
DKIM : Domain Keys Identified Mail (rfc 5863, 6541)
DLC : Data Link Control / Digital Loop Carrier / Download Content
DLCI : Data Link Connection Identifier (Frame Relay Addressing)
DLE : Data Link Escape (ASCII: X'10')
DLEP : Dynamic Link Exchange Protocol (rfc 8175)
DLFN : Device Low Frequency Noise
DLG : Digital Line Graph
DLI : Digital Library Initiative
DLL : Dynamic Linking Loader / Dynamically Linked Library / Delay Locked Loop
DLM : Dynamic Line Management / Distributed Local Monotor (Cabletron)
DLNA : Digital Living Network Alliance
DLO : Desktop and Laptop Option
DLR : Dynamic Language Runtime (Microsoft)
DLP : Digital Light Processing (®TexasInstr.) / Data Loss Prevention / Discrete logarithm problem
DLPI : Data Link Provider Interface
DLT : Data Linkage Table / Digital Linear Tape
DLU : Digital Line Unit
DLV : DNSSEC Lookaside Validation / Date of Last Visit
DMA : Direct Memory Access / Dump Memory in ASCII / Document Management Alliance / dioxymethamphetamine / Direct Marketing Association / Defense Mapping Agency
DMC : Digital Mapping Camera
DMCA : Digital Millennium Copyright Act / Digital Multi-Channel Access
DMD : Digital Media Diffusion
DME : Distributed Management Environment / Distance Measuring Equipment
DMF : Demodulate-and-Forward / DivX Media Format
DMG : Data Mining Group / Dot Matrix Game / Digital Map Generator / Disk Mounting image (filename extension) / Deutsche Meteorologische Gesellschaft
DMI : Desktop Management Interface
DML : Data Manipulation Language
DMO : Direct Mode Operation (GSM)
DMP : Data management platform
DMR : Digital Mobile Radio
DMS : Data Management System / Digital Mass Storage / Direct Media Service / Degrees, Minutes, Seconds / Defense Message System
DMSP : Defense Meteorological Satellite Program
DMSS : Dual Modulation Spectrum System
DMT : Discrete Multi-Tone
DMTF : Distributed Management Task Force
DMU : Dictionary Management Utility / Digital Mockup
DMZ : Demilitarized zone
DNA : Digital Network Architecture / Distributed InterNet Applications / Did Not Answer / Does Not Apply / Direct Network Access / Domain Name Associations (rfc 7712)
DNC : Digital Numerical Control / Digital Nautical Chart (®NIMA)
DNE : Does Not Exist
DNER : Distributed National Electronic Resource (UK)
DNF : Did not Finish
DNG : Digital Negative Graphics
DNI : Desktop Network Interface / Digital Network Intelligence / Director of National Intelligence
DNIC : Data Network Identification Code
DNIS : Dialed Number Identification Service
DNMS : Distributed Network Management System
DNPH : Di-Nitro-Phenyl-Hydrazine
DNR : Domain Name Resolver / Do-not-Revert / Dialed Number Recognition
DNRD : Domain Name Registration Data
DNS : Domain Name Server/Space (rfc 1034-35) / Did Not Start
DNSBL : DNS-Based List (rfc 6471) / DNS-based Blackhole List
DNSO : Domain Name Supporting Organization (see GNSO)
DNT : Do Not Track
DOC : (Canadian) Department of Communications / Document of Compliance / (MS Word filename extension) / Disposition of Comments / Department of Commerce
DOD : Department Of Defense / Direct Outward Dialling
DOF : Depth-of-Field
DOI : Digital Object Identifier
DOM : Document Object Model
DOP : (GPS) Dilution of precision
DOS : Disk Operating System / Denial of Service (rfc 2827)
DOTf : Digital observatory task force
DPA : (UK) Data Protection Act / Data Protection Authority / Downlink Packet Access / Distributed Password Authentication / Differential Power Analysis
DPC : Data Protection Commissioner
DPCM : Differential Predictive Coding Method
DPD : Data Protection Directive
DPDK : Data Plane Development Kit
DPE : Dual Processor Engine / Digital Preservation Europe
DPI : Dots per Inch / Droits de propriété intellectuelle / Deep Packet Inspection
DPIA : Data Protection Impact Assessment
DPL : Digital Private Line / Digital Powerline
DPM : Data Protection Manager / Deterministic Packet Marking
DPMI : DOS Protected Mode Interface
DPMS : Display Power Management Standard
DPO : Data Protection Officer
DPOF : Digital Print Order Format
DPR : Digital Player/Recorder
DPS : Digital Photogrammetry System / Data Protection System / Domain Pseudonym System (rfc 6593) / Direct Part Supply
DPSK : Differential Phase Shift Keying
DPT : Distributed Processing Technology / Dynamic Packet Transport (Cisco)
DQDB : Distributed Queue Dual Bus (MAN)
DRAM : Dynamic Random Access Memory
DRAW : Direct read After Write
DRB : Digital Radio Broadcasting
DRBG : (Dual Elliptic Curve) Deterministic Random Bit Generator
DRC : Domain relational calculus / Distributed revision control / Desktop replacement computer / Design rule checking / Digital room correction / Disaster Recovery Center
DRCS : Dynamically Redefinable Character Set
DRDA : Distributed Relational Database Architecture
DRDC : Disaster Recovery Data Center
DRM : Digital Rights Management / Digital Radio Mondiale / Direction du renseignement militaire
DRMS : Digital Rights Management System
DRO : Dielectric resonator oscillator
DROID : Digital Record Object Identification
DRP : DECnet Routing Protocol / Disaster Recovery Plan
DRS : Distributed Resource Scheduling
DRT : Digital Real Time
DRV : Dual Recording by Volume
DSA : Digitizing Signal Analyser / Directory System Agent / Distributed System Architecture / Dynamic Scalable Architecture / Digital Signature Algorithm / Digital Storage Architecture / Dynamic Size Alteration / Directed Self-Assembly
DSAA : DECT Standard Authentication Algorithm
DSAP : Destination Service Access Point
DSB : Double sideband
DSBL : Distributed Server Blackhole List
DSC : Data Space Check / Digital Selective Calling / DECT Standard Cipher / Deep Space Catalog / Digital Still Camera (Sony)
DSCP : Differentiated Services Code Point
DSD : Direct Store Delivery / Direct Stream Digital (Philips/Sony) / Defence Signals Directorate (Australia)
DSDM : Dynamic Systems Development Method
DSDT : Differentiated System Description Table
DSDV : Destination-Sequenced Distance-Vector (routing)
DSE : Data Structure Editor / Data Switching Exchange
DSI : Digital Speech Interpolation
DSL : Digital Subscriber Line / Damn Small Linux
DSLAM : Digital Subscriber Line Access Multiplexer
DSLR : Digital single-lens reflex
DSM : Digital Single Market / Distributed Systems Management (Tandem) / Dynamic Spectrum Management / Diagnostic and Statistical Manual (of Mental Disorders)
DSML : Directory services markup language (in XML)
DSN : Data Set Name / Deep Space Network / Delivery Status Notification / Digital Secure Network / Digital Subscriber Network / Defense Switched Network
DSNG : Digital satellite news gathering
DSO : Dynamic Shared Object / Digital Sampling Oscilloscope
DSOM : Distributed System Object Module (OS/2, AIX)
DSP : Digital Signal Processor / Document Storage Processor / Data-link Service Provider / Digital Sound Processor / Domain Specific Part / Directory System Protocol / Defense Support Program / Demand side platform
DSR : Data Set Ready (RS232:6) / DatenStationRechner / Device Status Register / DIGITAL Standard Runoff / Digital Satellite Radio / Dynamic Source Routing protocol / Direct Sampling Receiver
DSRC : Dedicated short range communications
DSRK : Domain-Specific Root Key (RFC 5295)
DSS : Data Security Standard / Digital Signature Standard / Digital Spread Spectrum / Digital Speech Standard (IVA) / Decision Support System / Digital Satellite System / Digitized Sky Survey / Defense Security Service / Digital Sound file extension (Digital Soup) / Data Steward Studio
DSSC : Data Structure for the Security Suitability of Cryptographic Algorithms (rfc 5698)
DSSI : Digital Storage System Interconnect
DSSS : Direct Sequence Spread Spectrum / Driving Safety Support System
DST : DatenSTation / Device Synopsis Table / Daylight Saving Time
DSU : Data Service Unit (ATM)
DSVD : Digital Simultaneous Voice and Data
DSX : Distributed Systems EXecutive
DTCP : Dual Tape Carrier Packaging
DTD : Document Type Definition
DTE : Data Terminal Equipment / Domain and Type Enforcement (TIS.com)
DTED : Digital Terrain Elevation Data
DTF : Data Transfer Facility / Distributed Terascale Facility (NSF Databases)
DTH : Direct to Home
DTI : Department of Trade and Industry (GB) / Data Transmission Interworking
DTIM : Delivery Traffic Indication Message
DTLS : Datagram Transport Layer Security (rfc 7350, 7360)
DTMB : Digital Terrestrial Multimedia Broadcast
DTMF : Dual Tone MultiFrequency
DTN : Disruption Tolerant Network / Delay Tolerant Network
DTO : Direct Termination Overflow
DTP : DeskTop Publishing / Distributed Transaction Processing / Dynamic Throughput Processing / Data Transfer Protocol
DTR : Data Terminal Ready (RS232:20) / Draft Technical Report
DTRS : Digital Trunk Radio System
DTS : Digital Time-Stamping / Developer Technical Support / Digital Theater System
DTT : Digital Terrestrial Transmission
DTU : Data Transport Utility / Data Transport Unit
DTV : Digital Television
DTX : Discontinuous transmission
DUA : Directory User Agent (rfc1373) / Data Use Agreement / Dial-Up Adapter
DUAL : Distributed Update Algorithm
DUE : Daten-Übertragungs-Einrichtung
DUHL : Dynamic User and Host List (SORBS)
DUL : Dial-Up Line / Dynamic Users List / Did You Like / Data UnLoader
DUMB : Doable, understandable, manageable and beneficial
DUN : Dispatch Unit Number / Dial-up networking
DUNS : Data Universal Numbering System
DURZ : Deliberately Unvalidatable Root Zone (DNSSEC)
DUT : Device Under Test
DUV : Deep Ultra-Violet
DVA : DatenVerarbeitungsAnlage
DVB : Digital Video Broadcast
DVD : Digital Video Disk
DVE : Digital Video Effects / Distributed Virtual Environment / Digital Video Editor (Sony)
DVI : Digital Video Interface / DeVice Independent
DVOR : Doppler VHF Omnidirectional Range
DVR : Digital Voice Recorder / DatenübertragungVorRechner
DVRS : Digital Video Recording System
DVVI : Data Voice Video Integration
DWDM : Dense Wave Division Multiplexing
DWF : Drawing Web Format
DWG : DraWinG (AutoCAD filename extension)
DWMT : Discrete Wavelet MultiTone
DXF : Drawing Interchange File
DXI : Data eXchange Interface (SMDS and ATM)
DYI : Download Your Information
(Retour au début)

EAC : Extended access control
EAD : Encoded Archival Description
EADS : Engineering Analysis & Data System
EAI : Enterprise Application Integration
EAL : European (cooperation for) Accreditation of Laboratories / Evaluation Assurance Level
EAM : Emergency Action Message / Evanescent Access Method (Siemens)
EAN : European Article Number / Emergency Action Notification
EANN : Engineering Applications of Neural Networks
EAP : Extensible Authentication Protocol (rfc 2284)
EAPS : External Attack Prevention System
EARN : European Academic Research Network
EARS : Early Alert Response System
EAS : Embedded Authentication Server / Emergency Alert System / Exchange ActiveSync
EASA : Electrical Apparatus Service Association / European Aviation Safety Agency / European Advertising Standards Alliance
EASC : Euro-Asian Council for Standardization, Metrology and Certification
EAX : Environmental Audio Extensions
EBGP : External Border Gateway Protocol
EBIT : European Broadband Interconnecting Trial
EBRM : Evidence Based Risk Management
EBSR : Evidence-Based Selected-Response / Electronic Bus Service Registration /see BSR
EBX : =eBox (PackshotCreator file format)
ECAM : Electronic Centralised Aircraft Monitor / Electronically Controlled Air Management / Environmental Continuous Air Monitor
ECB : Electronic Code Book / European Chemicals Bureau
ECC : Error Correction Code / Error Checking and Correction / Electronic Communications Committee / Elliptic Curve Cryptography / European Cryptologic Center / European Citizen Card
ECCS : Extended combining character sequence
ECD : Envelop to cycle difference (LORAN)
ECDH : Elliptic curve Diffie–Hellman
ECDSA : Elliptic Curve Digital Signature Algorithm
ECEF : Earth-centered, Earth-fixed
ECHO : European Comission Host Organization / European Comission Humanitary Office
ECI : Earth Centered Inertial
ECID : Exclusive Chip ID
ECIR : Explorations in Cyber International Relations
ECIS : The European Committee for Interoperable Systems / European Council of International Schools / European Colloid and Interface Society
ECL : Emitter Coupled Logic / Entry Closed Loop
ECM : Error Correction Mode / Electronic Counter Measures / Event Control Module / Electric Cipher Machine / Enterprise Content Management / Environmentally Conscious Manufacturing
ECMA : European Computer Manufacturers Association
ECML : Electronic Commerce Modeling Language (RFC 3505)
ECN : Explicit Congestion Notification (rfc 3168, 5562, 8311)
ECP : Excessive Cross-Posting
ECPA : Electronic Communications Privacy Act
ECR : Efficient Consumer Response
ECSD : Enhanced Circuit Switched Data (EDGE)
ECTA : European Competitive Telecommunications Association
ECTF : European Community Telematics Forum / Electronic Crimes Task Forces
ECW : Enhanced Compressed Wavelet
EDA : Electronic Design Automation
EDAA : European Digital Advertising Alliance
EDB : External Data Bus / Exchange Database (Microsoft) / Evan's Debugger (Linux)
EDC : Error Detection Code / EROS Data Center
EDCA : Enhanced distributed channel access
EDD : E-mail Deficiency Depression / Enhanced due diligence
EDF : Efficient Data Flow
EDFA : Erbium Doped Fiber Amplifier
EDGAR : Electronic Data Gathering Analysis and Retrieval
EDGE : Enhanced Datarate for GSM Evolution
EDH : Error Detection and Handling
EDI : Electronic Data Interchange
EDIN : Economic Development Informaton Network
EDL : Edit-Decision List / European Digital Library
EDLC : Electrochemical double layer capacitors
EDM : Electronic Document Management / Engineering Data Management
EDMS : Electronic Document Management System / Engineering Database Management System
EDNS : Extension Mechanisms for DNS (rfc 6891, 7314)
EDO : Extended Data Output (memory)
EDP : Electronic Data Processing / Event Driven Programming / Early Departure Procedure / Error Detection Probability
EDPS : European Data Protection Supervisor
EDR : Enhanced Data Rate (Bluetooth)
EDRi : European Digital Rights
EDS : Electronic Display System / Extended Data Services (now XDS ; EIA-766)
EDT : Eastern Daylight Time
EDTA : Ethylene-Diamine-TetraAcetate
EEMA : European Electronic Mail Association
EEST : Eastern European Standard Time
EFCS : Electronic Flight Control System
EFF : Electronic Frontier Foundation
EFI : External Functional Interface (WAP spec) / Extensible Firmware Interface
EFIS : Electronic Flight Instrument System
EFL : Enlightenment Foundation Libraries
EFM : Ethernet in the first mile / Eight-to-Fourteen Modulation
EFR : Enhanced Full Rate (GSM technology)
EFS : Engineering Flight Simulator / Encrypted File System
EFSS : Enterprise File Sync and Sharing
EFT : Electronic Fund Transfer
EFTP : Encrypted File Transfer Protocol
EGA : Enhanced Graphics Adapter
EGC : Equal-Gain Combining / Exterior Gateway Protocol / Extended grapheme cluster
EGEE : Enabling Grids for E-sciencE
EGI : European Grid Infrastructure
EGNOS : European Geostationary Navigation Overlay Service
EGP : Exterior Gateway Protocol
EHS : External Hostile Structured (threat) / Electromagnetic hypersensitivity / Electronic Hook Switch / Emergency Health Services / European Home Systems (protocol) / Environment, Health and Safety / Enhanced Surveillance (Mode S transponders)
EIA : Electronics Industry Association / Environmental Impact Assessment / EPS Integrity Algorithm / Energy Information Association
EIAJ : Electronic Industries Association of Japan
EIAO : European Internet Accessibility Observatory
EIDE : Enhanced IDE
EIDR : Entertainment IDentifier Registry (rfc 7302)
EIES : Electronic Information Exchange System
EIF : European Interoperability Framework
EII : Enterprise Information Integration
EIM : Electronic Image Management / Enterprise Infrastructure Management
EIMS : Eudora Internet Mail Server
EIN : European Informatics Network
EIP : (Xerox) Extensible Interface Platform / Enterprise Information Portal
EIPP : Electronic Invoice Presentment and Payment
EIRP : Equivalent Isotropic Radiated Power
EIS : Executive Information System / Environment Information System / Electronic Instrument System / Entry Into Service / Environmental Impact Statement / Emergency Information Service
EISA : Extended Industry Standard Architecture / European Imaging and Sound Association
EITO : European Information Technology Observatory
EKE : Encrypted Key Exchange
EKU : Extended Key Usage (rfc 5924)
ELAN : Emulated LAN
ELAP : Ether Link Access Protocol
ELB : Emergency Locator System
ELF : Executable and Linking Format (Linux/Unix) / Easy Link to Fido / Extremely Low Frequencies
ELIP : Embedded Location Information Protocol
ELM : ELectronic Mail (Unix client) / Error Log Manager
ELO : Electronic Learning Environment
ELS : Event Logging Server / Extended Link Service
ELT : Emergency Locator Transmitter
EMA : Enterprise Management Architecture / Electron-Microscopic Autoradiography / Emergency Management Agency
EMAC : Encrypted CBC-MAC
EMAN : Energy-Management (rfc 7326)
EMAS : Environmental Management and Audit Scheme / Electron Microprobe Auger Spectroscopy / Emergency Message Authentication System
EMB : Extended Memory Blocks
eMBB : enhanced mobile broadband
EMC : ElectroMagnetic Compatibility / Entertainment, media and communications
EMCS : Excise Movement Control System
EME : Encrypted Media Extensions
EMEA : European Medicines Evaluation Agency / Europe, Middle East, Africa
EMET : Enhanced Mitigation Experience Toolkit
EMF : Enhanced Metafile Format / European Monetary Fund / ElectroMagnetic Fields
EMI : ElectroMagnetic Interference / European Monetary Institute
EML : Electronic Mail (filename extension)
EMM : Extended Memory Management / Energy Memory Module
EMP : Excessive Multiple Posting / Electro-Magnetic Pulse (sensor)
EMR : Encapsulated Map-Request / Electronic medical record system
EMS : Enhanced Messaging Service / Effluent Management System / Expanded Memory Specification (DOS) / Event Management Service (Tandem) / European Meteorological / Express Mail Service Society / Ethyl methanesulfonate / Enterprise Mobility Server
EMSI : Electronic Mail Standard Identification
EMSS : Enhanced Mobile Satellite Services
EMT : Error Mask Table
EMV : Europay/Mastercard/Visa (protocol)
ENA : Extended Network Addressing
ENC : Electronic Navigation Chart
ENRI : Electronic and Navigation Research Institute
ENS : European Nervous System / Enterprise Network Services (VINES) / Earthquake Notification Service
ENT : EGNOS Network Time / Environnement Numérique de Travail
EOC : Embedded Operations Channel (ADSL)
EOD : Erasable Optical Disk / Explosive Ordnance Disposal
EOF : End of File / Enterprise Objects Framework
EOJ : End of Job
EOL : Ecoulements Optimises des Locaux / End Of Line
EOM : End of Message
EOR : End of Record / Exclusive OR / Enhanced Oil Recovery
EOS : Electronic Output Strategies / Earth Observing System / Entertainment Operating System (Cisco)
EOT : End Of Transmission (ASCII 04) / Embedded OpenType / End of thread
E-OTD : Enhanced Observed Time Difference
EOV : End of Volume
EOW : End of Week
EPA : Entry Point Administrator / (US) Environment Protection Agency / European Press Agency / Enhanced performance architecture (MAP)
EPAC : Enhanced Perceptual Audio Coder
EPAR : European Public Assessment Report
EPBR : Extended Partition Boot Record
EPC : Electronic Product Code / Evolved Packet Core (SAE)
EPCI : Electronic Payment Certification Institute / Enhanced Proliferation Control Initiative
EPD : Early Packet Discard (ATM)
EPE : Estimated Position Error
EPG : Electronic Programming Guide (DTV)
EPIC : Electronic Privacy Information Center / European Prospective Investigation into Cancer and nutrition / Explicit Parallel Instructionset Computing
EPIM : Ethernet Port Interface Module
EPIRB : Emergency Position Indicating Radio Beacon
EPIX : Emergency Preparedness Information EXchange
EPLD : Erasable programmable logic device
EPO : European Patent Office
EPOC : Elevated Package Over CSP / Electronic Piece of Cheese (Symbian OS) / Excess postexercise oxygen consumption
EPON : Ethernet Passive Optical Network
EPOS : Electronic Point of Sale
EPOW : Early Power-Off Warning
EPP : Enhanced Parallel Port / Extensible Provisioning Protocol (rfc 5734, 5910) / Emergency Procedures Plan / Expanded PolyPropylene
EPPB : ElcomSoft Phone Password Breaker
EPR : Electronic Paramagnetic Resonance / Einstein Podolski Rosen (paradox) / European Pressurized Reactor
EPS : Encapsulated PostScript / Enterprise Portal Software / Evolved Packet System / Enterprise Premises Solution (Olivetti) / European Physics Society
EPSV : Extended Passive Mode
ERA : Extensible Rendering Architecture
ERC : European Radiocommunications Committee
ERCS : Extended Reference Concrete Syntax
ERE : Entity Relationship Editor
ERIC : Education Resources Information Center
ERIN : Emergency Response Information Network
ERMS : Entry Relationship Management System
ERO : European Radiocommunication Office / Explicit Route Object
EROS : Earth Resources Observations System / Extremely Reliable Operating System
ERP : Effective Radiated Power / Enterprise Resource Planning / EAP Re-authentication Protocol (rfc 5296, 6440) / Extended Rate PHY
ERS : Earth Remote Sensing / Earth Resources Satellite / Evolved Packet System (3GPP) / Emergency Response Service
ES-IS : End System-to-Intermediate System
ESA : Extended System Architecture / Email Security Appliance / European Space Agency / Entertainment Software Association
ESB : Enterprise Service Bus
ESC : Electronic Stability Control (ESP)
ESD : ElectroStatic Discharge / Electronic Software Distribution
ESDI : Enhanced Small Device Interface / Enhanced Serial Data Interface / European Security and Defence Initiative / Earth Science Data Interface
ESDS : Entry Sequenced Data Set
ESE : Electronic Storage Element (DEC)
ESET : Essential Security against Evolving Threats (™)
ESF : Enhanced Simplex Format / Emergency Support Function
ESM : Enterprise Security Manager / Electronic Support Measures
ESMD : Enhanced Storage Module Device
ESMS : Euro SDMX Metadata Structure
ESN : Electronic serial number / Entreprise de services du numérique
ESO : European Southern Observatory
ESOC : European Space Operations Centre
ESP : Encapsulating Security Protocol / Encryption Security Protocol / Eudora Sharing Protocol / Environment, Statistics and Policy / Ethernet Service Provider / Encapsulating Security Payload (RFC 2406, 4303) / Electronic Stability Program
ESPC : Email Service Provider Consortium
ESR : Extended Support Release
ESRI : Environmental Sciences Research Institute, inc.
ESRP : Emergency Service Routing Proxy
ESS : Enterprise Storage Strategies / Extended Service Set / Embedded Security Subsystem / European Security Strategy
EST : (US) Eastern Standard Time
ESTA : Electronic System for Travel Authorization / Entertainment Services and Technology Association
ETAI : Electronic Transactions on Artificial Intelligence
ETB : End of Transmission Block (ASCII 07)
ETC : Enterprise Time Capture / European Topics Center / Emergency Telecommunications Cluster
ETCD : Equipement Terminal ce Circuit de Données
ETCP : Entertainment Technician Certification Program
ETF : Exchange Traded Fund / E-Mail To Fax
ETL : Extract, Transform, Load
ETM : (Landsat) Enhanced Thematic Mapper
ETNO : European Telecommunications Network Operators' Association
ETO : Essential Tool Objects
ETR : Egress Tunnel Router / Estimated Time of Return/Repair
ETRS : European Terrestrial Reference System
ETSI : European Telecommunications Standard Institute
ETX : End of TeXt (ASCII 03)
EUCD : European Union Copyright Directive
EUD : End User Device
EUDC : End-user defined character
EUE : End User Equipment
EUI : (64-bit) Extended Unique Identifier (IPv6)
EUID : Effective User ID
EULA : End User License Agreement
EUV : (or EUVL) Extreme ultraviolet lithography
EVA : Explication et Vérification Automatique (de protocoles cryptographiques)
EVC : Extended Validation Certificate
EVD : Enhanced Versatile Disk
EVDO : Evolution-Data Optimized or Evolution-Data only
EVE : Extensible Vax Editor
EVFS : Encrypted virtual file system
EVH : Equine Herpes Virus
EVN : EuroVision News
EVRC : Enhanced Variable Rate Narrowband-Wideband Codec (EVRC-NW) (rfc 6884)
EWC : Exchange Web Connect
EWF : Enhanced Write Filter
EWL : Enlightenment Widget Library
EWOS : European Workshop for Open Systems
EWSD : Elektronisches Wählsystem Digital (Electronic Digital Switching System/Electronic World Switch Digital)
EXIF : Exchangeable Image File format
(Retour au début)

FACT : ForwArding and Control ElemenT protocol / Flexible Alternating Current Transmission System
FAF : Final Approach Fix
FALU : Floating-point Arithmetic Logic Unit
FAM : File Access Monitor
FANP : Flow Attribute Notification Protocol (Toshiba)
FANS : Future Air Navigation System
FAO : Fabrication Assistée par Ordinateur
FAQ : Frequently Asked Questions
FASD : Fast Access Storage Director
FAST : Federation Against Software Theft / Flexible Authentication via Secure Tunneling / Fugitive Active Search Team
FAT : File Allocation Table (Windows) / Factory Acceptance Test
FBA : Fixed Block Architecture / Faceless Background Application
FBB : Fast Back-To-Back
FBE : File-based Encryption
FBM : Frame Burst Mode
FBSS : Financial Branch Suport Service
FCA : Free Cloud Alliance
FCAL : Fibre Channel Arbitrated Loop
FCAP : Fibre Channel Authentication Protocol
FCB : File Control Block
FCC : Federal Communications Commission (usa) / Fichier central des chèques (Fr)
FCCU : Federal Computer Crime Unit (Belgique)
FCD : Floating car(cellular) data / Funcube Dongle
FCI : Flux Changes per Inch
FCIF : Full Common Intermediate Format
FCIP : Fibre Channel Internet Protocol
FCM : Factory Control and Management
FCoE : Fibre Channel over Ethernet
FCP : Fibre Channel Protocol
FCS : Frame Check Sequence / Field Check Sequence / Flash Communication Server
FDA : Food and Drug Administration
FDC : Factory Data Collection / Fixed Destination Call
FDCC : Federal Desktop Core Configuration settings
FDD : Floppy Disk Drive / Frequency Division Duplex
FDDI : Fiber Distributed Data Interface
FDE : Full Disk Encryption
FDF : (Acrobat) Forms Data Format (FileName Extension)
FDH : Full Domain Hash
FDIS : Final Draft for International Standard
FDL : (GNU) Free Documentation License
FDM : Frequency Division Multiplex / Front Door Menuing
FDMA : Frequency Division Multiple Access
FDN : Fixed Dialing Number / French Data Network
FDP : Factory Default Profile
FDR : Flight Data Recorder / False discovery rate
FEBE : Far End Block Error (SONET)
FEC : Forward Error Correction / Forwarding Equivalence Classes
FECN : Forward Explicit Congestion Notification (Frame Relay)
FEI : Front-End Interface
FEM : Finite Element Method (rf simulation) / Front-End Modules
FEO : Front-end optimization
FEP : Front End Processor
FERF : Far End Receive Failure (SONET)
FET : Field Effect Transistor
FFC : Flexible Flat Cable
FFH : Fast Flux Hosting / Fast frequency hopping
FFT : Fast Fourrier Transform / Free Field Technologies
FFU : Free File Upload
FHS : Format Handling System / Filesystem Hierarchy Standard (Linux) / File Hosting Services
FHSS : Frequency Hopping Spread Spectrum
FIA : Future Internet Architecture (NSF project)
FIB : Forwarding Information Base (rfc 3222)
FIDO : Fast Identity Online Alliance
FIF : Fractal Image Format
FIFO : First In First Out
FIGS : Fraud Information Gathering System
FIM : Facing Identification Mark
FIND : Future Internet Design
FiOS : Fiber (internet) Optic Service (Verizon)
FIPR : Foundation for Information Policy Research (uk)
FIPS : Federal Information Processing Standards / Floating-Point Instructions Per Second / Fabuleux Initiateur de Partitions Supplémentaires / the First nondestructive Interactive Partition Splitting program
FIR : Finite Impulse Response / Flight Information Region
FIRE : Future Internet Research and Experimentation
FIRP : Federal Internetworking Requirements Panel
FIRST : Forum of Incident Response and Security Teams
FIS : Flight Information Services
FISA : Foreign Intelligence Surveillance Act (US)
FISC : Foreign Intelligence Surveillance Court
FISMA : Federal Information Security Management Act
FISO : Fast In, Slow Out
FITL : Fiber In The Loop
FITS : Functional Interpolating Transformation System / Flexible Image Transport System
FIX : Financial Information eXchange
FIW : Freesites Insertion Wizard
FKP : Flächen Korrektur Parameter (NRTK corrections)
FLAC : Free Lossless Audio Codec
FLAG : Fiber-optic Link Around the Globe
FLIP : Freenet Lightweight IRC Program
FLIR : Forward looking InfraRed
FLPR : Fast Learning Programmable Remote
FLV : Flash Live Video (file format)
FMC : Flight Management Computer
FME : Feature Manipulation Engine
FMEA : Failure modes and effects analysis / Foreign Material Exclusion Area
FMS : File Management System / Freenet Messaging System / Flight Management System
FNB : Flexible Network Bus (Cabletron)
FNC : Federal Networking Council
FNMP : Frye™ Network Management Platform
FOAD : Formations ouvertes et à distance
FOB : Franco On Board
FOCA : Fingerprinting Organizations with Collected Archives / Federal Office of Civil Aviation
FOE : Feed over email
FOIA : Freedom of Information Act
FOM : Fiber Optics Modem
FON : Fibre Optique Noire
FOMA : Freedom Of Mobile Multimedia Access
FOSS : Free and Open Source Software / Full Option Science System
FOT : Fiber Optic Transceiver
FOTA : Firmware Over-the-Air / Formula One Teams Association
FOUO : For Official Use Only
FPC : Flat Panel Computer / Flexible Printed Circuitry
FPD : Flat Panel Display
FPE : Format Preserving Encryption
FPGA : Field Programmable Gate Array
FPI : Formal Public Identifier
FPKI : Federal Public Key Infrastructure
FPO : For Position Only
FPR : False positive rate
FPRF : Field programmable Radio Frequency
FPS : Frames per Second / Fax Preference Service / First-person shooter (game)
FPT : Forced Perfect Termination
FPU : Floating Point Unit
FPV : Floating Point Value / First Person View / Flight Path Vector
FPX : FlashPix Format
FQDN : Fully Qualified Domain Name
FRAD : Frame Relay Access Device
FRAM : Ferroelectric Random Access Memory
FREE : Forum for Responsible and Ethical Email / Fundamental Rights European Experts
FRM : Fast Release Mode
FRND : Frame Relay Network Device
FROM : Flash Read Only Memory
FRP : (U.S.) Federal Radionavigation Plan
FRS : Family Radio Service
FRT : Facial recognition technology
FSA : Food Standards Agency / Federal Security Agency
FSB : Front-Side Bus / Federal Security Service (Russia)
FSBY : Forced StandBy / For sale by owner
FSE : Full Screen Editor
FSF : Free Software Foundation
FSK : Frequency Shift Keying
FSM : Flight system message / Flight Schedule Monitor / Flying Model Simulator / Freiwillige Selbstkontrolle Multmiedia-Dienstanbieter
FSN : FileSet Name
FSO : Free Space Optics
FSP : File Service Protocol
FSPL : Free Space Path Loss
FSR : Force Sensing Resistor
FSS : Fixed Satellite Service / Frequency Selective Surface
FTA : Free To Air / Fault Tree Analysis / Free-Trade Agreement
FTAM : File Transfer Access and Management (ISO 8571)
FTC : Federal Trade Commission
FTE : Full Time Equivalent
FTL : Flash Translation Layer
FTP : File Transfer Protocol / Foil shielded Twisted Pair / File Transfer Profile
FTPS : File Transfer Protocol Secure
FTS : Four-Tone Synthesizer / Fidonet Technical Standard / Flight termination system
FTSC : Fido Technical Standard Committee
FTTB : Fiber to the building
FTTC : Fiber to the curb
FTTD : Fiber To The Desk
FTTH : Fiber to the Home
FTTN : Fiber To The Neighborhood/Node
FTU : First Time User
FUI : File Update Information
FUMO : Firmware Update Management Object
FUNI : Frame User-to-Network Interface (ATM)
FUSE : Filesystem in UserSpacE
FVT : Full Video Translator
FWA : Fixed Wireless Access
FWH : Firmware Hub (Intel)
FWS : Folding WhiteSpace (rfc 5322 syntax)
FWSM : Firewall Services Module (Cisco)
FXG : Flex Graphics format
FYI : For Your Information (Internet doc)
 
GAA : Generic Authentication Architecture
GAC : Gestion Administrative Centralisée / Global Assembly Cache / Global Area Coverage / Google Advertising Certification / Governmental Advisory Committee
GACB : Global Access CallBack
GADL : GNSS Augmentation data link
GADS : Generating Availability Data System / Google Apps Directory Sync / Gateway Algorithms and Data Structures / Gate Assignment Display System
GAFA : Google Apple Facebook Amazon
GAFW : Generic Application FrameWork
GAIA : Graphical Analysis for Interactive Assistance
GAIN : Gator Advertising and Information Network
GAL : General Assembly Language / Global Address List
GAMS : General Algebraic Modeling System
GAN : Global Area Network (Inmarsat M4) / Generic Access Network / Generative Adversarial Network
GAP : Generic Access Profile / Government Assurance Pack
GBA : Generic Bootstrapping Architecture
GBAS : Ground Based Augmentation System
GBIC : GigaBit Interface Converter
GCAC : Generic Connection Admission Control (rfc 6601)
GCC : GNU Compiler Collection
GCCF : Generalized Cross-Correlation Function
GCHQ : UK's Government Communications Headquarters
GCM : Galois/Counter Mode (Cryptography) / Global climate model / Google Cloud Messaging
GCMP : Galois/Counter Mode Protocol
GCP : Gateway Control Protocol
GCR : Group Coded Recording / Grey Component Replacement
GCT : Greenwich Civil Time
GCW : Green Control Word
GDB : Guest DataBase
GDC : Global Data Center
GDAL : Geospatial Data Abstraction Library
GDDR : Graphics Double Data Rate
GDEM : Global Digital Elevation Model (GIS data)
GDG : Generation Data Group
GDI : Graphics Device Interface (MS Windows) / Geographic Data Infrastructure
GDLC : Generic Data Link Control
GDM : GNOME Display Manager
GDMT : Generalized Discrete Multi-Tone (ITU G.992.1)
GDOP : Geometric Dilution Of Precision (GPS)
GDPR : General Data Protection Regulation
GDS : Global Distribution System
GDSN : Global Data Storage Network
GED : Geston Électronique de Documents (=EDM)
GEM : Graphics Environment Manager / Game Enhancement Module / Generic Ericsson Magazine
GEMS : Global Environment Monitoring System / Global Enterprise Management of Storage
GENI : Global Environment for Network Innovations
GEO : Geosynchronous Earth Orbit
GEOS : Geodetic Earth Observation Satellite / Graphic Environment Operating System
GES : Ground Earth Station / Gaz à Effet de Serre
GFC : Generic Flow Control (ATM)
GFCI : ground fault circuit interrupter
GFDL : GNU Free Documentation License
GFI : ground fault (circuit) interrupter
GFS : Girls Friendly Society / Global File System (LINUX file system) / Global Forecast System
GFSK : Gaussian Frequency Shift Keying
GFY : GIF Format Yoker
GGH : Goldreich–Goldwasser–Halevi (encryption)
GGSN : Gateway GPRS Service Node
GHA : Greenwich Hour Angle
GHDB : Google Hacking Database
GHT : Generalised Hough Transform
GIA : Guided Information Access (Nisus) / Government Information Awareness
GIAC : Global Information Assurance Certification
GIBN : Global Interoperability of Broadband Networks
GICC : German ISO 8583 Credit Card-Protokoll
GID : Group IDentifier
GIF : Graphics Interchange Format
GIFT : GNU Image-Finding Tool / General Internetwork File Transfer
GIG : Global Information Grid
GIIF : Global ISDN Industry Forum
GILC : Global Internet Liberty Campaign
GILS : Government Information Locater Service (USA)
GIMP : GNU Image Manipulation Program
GINC : Global Information Network on Chemicals (UNEP)
GIO : GNOME Input output (VFS API) library
GIP : Global Internet Project / GSM Internetworking Protocol
GIS : Geographic Information System
GISS : Global Information Security Survey
GIST : Glossary of Information Security Terms / Generic Internet Signalling Transport (rfc 5971)
Git : GNU Interactive Tools
GKS : Graphic Kernel System
GLBA : Gramm-Leach-Bliley Act
GLCF : Global Land Cover Facility
GLIS : Global Land Information System
GLL : (Positionnement) Géographique Longitude-Latitude
GLN : Global Location Number
GLOS : Graphics Language Object System / Global Sea Level Observing System
GLP : Good Laboratory Practice
GLRS : Geodynamics Laser Ranging System
GLUE : Groups of Linux Users Everywhere
GMAC : Galois Message Authentication Code (rfc 4543)
GMAO : Gestion de Maintenance Assistée par Ordinateur
GMCH : Graphic and Memory Controller Hub
GMD : Gesellschaft fuer Mathemetik und Datenverarbeitung
GMDSS : Global Maritime Distress and Safety System
GMES : Global Monitoring for Environment and Security
GML : Geography Markup Language / Generalized Markup Language
GMP : Good Manufacturing Practice / GNU Multi-Precision
GMR : Geo-Mobile Radio / Goldwasser, Micali and Rivest (signature algorithm) / Ground Mobile Radio / Giant MagnetoResistive (head)
GMS : Group Management Server / Geostationary Meteorological Satellite
GMSK : Gaussian Minimum Shift Keying
GMT : Greenwich Mean Time / Generic Mapping Tools / Goodman, Martínez & Thompson (Maya calendar)
GNE : Global Network Exploitation
GNFS : General number field sieve
GNI : Global Network Initiative
GNN : Global Network Navigator
GNS : Get Nearest Server (IPX) / GEOnet Names Server / Global Network Services
GNSO : Generic Names Supporting Organization
GNSS : Global navigation satellite system
GNU : GNU's Not Unix
GOF : GSM Operators' forum / Glass Optical Fiber
GOS : Gateway Operating System
GOST : GOsudarstvennyi STandard (russian certification - block cypher : rfc 5851)
GOTS : Government off-the-shelf
GPEN : Global Privacy Enforcement Network
GPG : GNU Privacy Guard
GPI : General Purpose Input
GPIB : General Purpose Instrument Bus (=IEEE 488)
GPIF : General Programmable Interface
GPIO : General Purpose Input/Output
GPL : (GNU) General Public License
GPLR : Government Purpose License Rights
GPO : Group Policy Object (Microsoft Windows)
GPON : Giga Passive Optical Network
GPRS : General Packet Radio Service
GPS : Global Positioning System/Satellite
GPSR : Global Positioning System Receiver / Greedy Perimeter Stateless Routing
GPST : GPS time
GPT : GUID Partition Table / Google Publisher Tags
GPTN : Global Public Telecommunication Network
GPU : Graphics Processing Unit / Global Processing Unit (client Gnutella)
GPUL : GigaProcessor UltraLite
GPWS : Ground Proximity Warning System
GPX : GPS EXchange (format)
GRAN : Generic Radio Access Network
GRAS : Ground-based Regional Augmentation System
GRE : Generic Routing Encapsulation (rfc 5845)
GREP : Global Regular Expression Parser
GRI : Group Repetition Interval (LORAN navig sys)
GRIB : General Regularly-distributed Information in Binary (WMO)
GRIC : Global Reach Internet Connection
GRID : Global Resource Information Database / Ground Radio Interface Devices / Goede raad is duur / Groupe de recherche sur le Risque, l'Information et la Décision
GRS : Geodetic Reference System
GRX : General Packet Radio Service Roaming Exchange
GSA : Gateway Security Appliance (Symantec) / General Services Administration (US) / Global mobile Suppliers Association / General Services Administration / Google Search Appliance
GSL : GNU Scientific Library / Gestalt Selectors List
GSM : Global System for Mobile (communication) / Ground Support Maintenance
GSMA : GSM Association
GSN : Global Seismographic Network
GSP : Government Security Program / Generalized System of Preferences
GSS : Group Switch Subsystem / Generic Security Service
GSSP : GIAC Secure Software Programmer
GSTN : Global Switched Telephone Network (rfc 3191, 3601)
GSV : GPS Satellites in View
GTA : GeoPort Telecom Adapter
GTDA : General Technical Data Available
GTE : Global Tropospheric Experiment
GTFS : General transit feed specifications
GTI : Global Threat Intelligence
GTIN : Global Trade Item Number
GTK : GIMP Toolkit / Group Temporal Key
GTL : Gunning Transceiver Logic
GTM : GPS TrackMaker (filename extension)
GTOS : Global Terrestrial Observing System
GTP : GPRS Tunneling Protocol
GTR : Garantie de Temps de Rétablissement / Générateur thermoélectrique à radioisotope
GTRN : Global Terabit Research Network
GTS : Global Telecommunications System / Guaranteed time slots
GTSM : Generalized TTL Security Mechanism (rfc 6720)
GUI : Graphical User Interface
GUID : Globally Unique IDentifier
GUS : Guide to the Use of Standards
GVFS : GNOME virtual fileSystem
GVU : Gesellschaft Zur Verfolgung Von Urheberrechtsverletzungen / Graphics, Visualization and Usability
GWR : Guided Wave Radar
GWT : Google Web Toolkit
(Retour au début)
 
HAD : Heat Acquisition Devices / Hole Accumulated Diode (Sony)
HADT : Hawaii-Aleutian Daylight Time
HAL : Hardware Abstraction Layer
HAM : Hierarchical Apple Menu® / Hold-and-Modify (Amiga)
HAN : Home Area Network
HANA : High-Performance Analytic Appliance (SAP)
HARK : Handy Audio Radio Kit
HARQ : Hybrid Automatic Repeat reQuest
HASP : Hardware Against Software Piracy
HAST : Hawaii-Aleutian Standard Time / Highly Accelerated Stress Test
HBA : Host Bus Adapter / Hash-Based Address
HBCI : Home Banking Computer Interface
HBL : Hostname-Based List
HBS : High Balanced Screening (Agfa)
HBT : Heterojunction Bipolar Tranistor
HCCA : HCF Controlled Channel Access
HCCB : High Capacity Color Barcode
HCF : Host Command Facility / Hybrid coordination function
HCI : Host Controller Interface / Human Computer Interaction
HCL : Hardware Compatibility List
HCR : Hashed XCR (signature)
HCS : Hierarchical Cell Structure
HDA : Head-Disk Assembly
HDAF : Home Domain Allocation Function (rfc 2794)
HDCP : High-Bandwidth Digital Content Protection
HDD : Hard Disk Drive
HDFS : Hadoop Distributed File System
HDL : Hardware Description Language
HDLC : High-level Data Link Control
HDM : Home Device Manager / Homme-du-Milieu (attaque MITM)
HDMI : High Definition Multimedia Interface / High-Density Multichip Interconnect
HDML : Handheld Device Markup Language
HDOP : Horizontal Dilution of Precision
HDR : High Dynamic Range / Human development Report
HDRI : High dynamic range imaging
HDSL : High-bit-rate Digital Subscriber Line
HDT : Hard Disk Toolkit (FWB's)
HDTV : High Definition Television
HEC : Header Error Check (ATM)
HELD : HTTP-Enabled Location Delivery (rfc 5985,6915)
HERS : Head-end ring switching (protocol)
HEVC : High Efficiency Video Coding
HFC : Hybrid Fiber Coax
HFDL : High Frequency Data Link
HFS : Hierarchical File System (Apple) / HyperFine Structure
HFT : High-Function Terminal / High Frequency Trading
HGC : Hercules Graphic Card
HGFS : Host Guest File System
HGI : Home Gateway Initiative
HIC : Host Initiated Connection
HID : Human Interface Device
HIDE : Human Interface Design Awards
HIDS : Host-based Intrusion Detection System
HIL : Human Interface Link (H-P)
HIP : Host Identity Protocol (rfc 4423, 5207, 6538) (HIP BONE : HIP-Based Overlay Networking Environment (rfc7086)) / Human Interactive Proof
HIPS : Host-based Intrusion Prevention System
HKDF : HMAC-based key derivation function (RFC 5869)
HKEY : Handle to a KEY
HKLM : HKEY_LOCAL_MACHINE (Windows registry)
HLC : High Layer Compatibility
HLL : High Level Language
HLR : Hidden Line Removed / Home Location Register
HLRI : Home Location Register Intelligence
HLS : Hue Lightness Saturation
HMA : High Memory Area / HideMyAss!
HMAC : Hash Message Authentification Code (RFC 2104, 5709)
HMI : Horizontal Movement Interval / Hub Management Interface / Human machine interface
HMP : Heterogen MultiProcessing / Host Media Processing
HMQV : Hashed Menezes-Qu-Vanstone
HNT : Hosted NAT Traversal (rfc 7362)
HOBA : HTTP Origin-Bound Authentication (rfc 7486)
HOL : Head of Line Blocking
HOOD : Hierarchical Object Oriented Design
HOPE : Hackers On Planet Earth
HORM : Hibernate Once, Resume Many
HOT : Hum(an)int(elligence) Operations Team / Hawaiian Ocean Time / Height Over Terrain / HUP (Hirschman Uncertainty Principle) Optimal Transform
HPA : Horizontal Position Absolute / Highest Priority with Aging / Health Protection Agency (UK) / Host Page Accelerator
HPBW : Half-Power BeamWidth
HPC : High-Performance Computing (NCSA)
HPF : Highest Priority First
HPFS : High Performance File System
HPGL : Hewlett-Packard Graphics Language
HPM : Heuristic Power Management
HPR : High Performance Routing / Hydroacoustic Position Reference
HPSA : Highly Parallel System Architecture
HQX : Binhex (FileName Extension)
HRD : High Rate Data
HRP : Highest Response-ratio with Priority
HRPT : High-Resolution Picture Transmission
HRXR : high-resolution x-ray reflectivity
HSB : Hue, Saturation, Brightness / Hot StandBy
HSC : Hierarchical Storage Controller
HSCS : High Speed Circuit Switched Services
HSCU : High Speed Connecting Unit
HSD : High Speed Data (GSM; Inmarsat) / Honestly Significant Difference / The Hague Security Delta
HSDN : High Speed Data Network (Bushnet)
HSDPA : High Speed Downlink Packet Access
HSI : Hardware-Software Interface / High Speed Interface / Horizontal Situation Indicator / Homeland Security Investigations
HSID : Health Services Identification Number / Home System IDentifier
HSL : Hue Saturation Lightness
HSM : Hierarchical Storage Management / Host Security Module / Hardware Security Module
HSO : High Security Option
HSP : Hosting Service Provider
HSPA : High speed packet access
HSPD : (US Federal government's) Homeland Security Presidential Directive
HSRP : (Cisco) Hot Standby Router Protocol (rfc 2281)
HSS : Home Subscriber Server
HSSI : High-Speed Serial Interface (DSU/ATM)
HST : Helical Scan Technology / High Speed Technology (modulation / US Robotics) / Hawaiian Standard Time / Hubble Space Telescope
HSTS : HTTP Strict Transport Security (rfc 6797)
HTA : HTML Application
HTC : HTML component (file extension) / Huawei Technologies, Co / High Tech Computer Corp.
HTCP : Hypertext Caching Protocol
HTML : HyperText Markup Language
HTR : Handwritten Text Recognition
HTTP : HyperText Transfer Protocol
HUD : Head up display
HUP : Home Use Program / Hirschman Uncertainty Principle
Hurd : Hird of Unix-Replacing Daemons
HVC : Hue Value Chroma
HVD : High Voltage Differential / Holographic Versatile Disc
HVM : Hardware Virtual Machine
HVS : Human Visual System
HWID : Hardware ID
 
IAB : Internet Architecture Board / Internet Advertising Bureau (UK)
IAC : Inter Application Communication / International Analysis Code (synoptic charts)
IACR : International Association for Cryptologic Research
IAD : Internet Address Detector / IETF Administrative Director
IADCS : Internal Attack Detection and Correction System
IAF : Internet Address Finder (http://www.iaf.net/frames/body/faq.htm)
IAG : International Association of Geodesy / Identity and Access Governance
IAHC : International Ad-Hoc Comitee (for Internet TLDs)
IAM : Inverse ATM Multiplexing / Identity and Access Management / Initial Address Message / Inventor Assembly Document(CAD format)
IANA : Internet Assigned Names Authority
IAO : Information Awareness Office
IAOC : IETF Administrative Oversight Committee
IAP : Internet Access Provider / I A Point / I A Policy / IPC Access Protocol
IAPM : Integrity Aware Parallelizable Mode
IARP : Inverse Address Resolution Protocol (rfc 2390)
IAS : International Accounting Standard / Identification-Authentification-Signature / Indicated Air Speed
IASA : Internet Administrative Support Activity
IAX : Inter-Asterisk eXchange (rfc 5456)
IBB : Internet Bug Bounty
IBC : Instrument Bus Computer / Integrated Broadband Communication / International Broadcasting Convention
IBE : Identity Based Encryption
IBGP : Internal Border Gateway Protocol
IBM : I Buy Macintosh
IBN : Institut Belge de Normalisation
IBPT : Institut Belge des Postes et Télécommunications
IBS : Intelsat Business Service / International Business Satellite
IBSS : Independent Basic Service Set
IBTC : International Business Telecom Center
ICA : Independent Computing Architecture / Independent Console Architecture
ICAP : Internet Content Adaptation Protocol
ICAS : Intermittent Commercial and Amateur Service
ICC : International Color Consortium / International Criminal Court
ICCID : Integrated Circuit Card ID
ICDP : Industry Coalition for Data Protection
ICE : Interactive Character set Editor / Image Compute Engine / In Case of Emergency / Int'l Cryptography Experiment / Intelligent Concept Extraction / Interactive Connectivity Establishment (rfc 6544) / Immigration and Customs Enforcement
ICF : International Cryptography Framework / Internet Connection Firewall
ICG : IANA Stewardship Transition Coordination Group
ICI : Interface Control Information / Integrated Controller Interface / Internet Computer Index
ICM : InComing Message / Incoming Call Management / Internet Content Marketing / Internet Control Module / Integer counter mode
ICMP : Internet Control Message Protocol (rfc 792)
ICN : Information-Centric Networking
ICO : Icon (MS FileName Extension) / In Case Of / Intermediate Circular Orbit / Initial Coin Offering
ICP : Internet Content Provider / Internet Cache Protocol / Inductively Coupled Plasma
ICR : Infrared Cut-Removable filter
ICS : Industrial Control System / Internet Connection Sharing
ICQ : I seek you / International Comet Quarterly
ICR : Intelligent Character Recognition / Initial Cell Rate (ATM)
ICRA : Internet Content Rating Association
ICS : IBM Cabling System / Integrated Communication Solution / Internet Calendaring and Scheduling (rfc 5545,5546) / Industrial Control System / Implementation Conformance Statement / (Intelligent Communication Software)™ / Internet Connection Sharing / International Card Services / Ice Cream Sandwich (Android 4.0)
ICSA : International Computer Security Association / Internet Cellular Smart Access (Microsoft)
ICT : Information and Communication Technologies / Irreversible Component Transform
ICTF : Internet Content Task Force
ICU : International Components for Unicode
ICV : Integrity Check Value
IDA : Interactive Debugging Aid / Interchange of Data between Administrations
IDAPI : Integrated Database Application Program Interface
IDC : Interactive Digital Center / International Data Corporation
IDD : International direct dialing
IDE : Integrated Development Environment / Integrated Drive Electronics / Interactive Design Environment / (Virus IDEntity files)
IDEA : International Data Encryption Algorithm / Industry Data Exchange Association / Interactive Database of Energy-Efficient Architecture
IDEF : Intrusion Detection Exchange Format
IDEN : Integrated Digital Enhanced Network
IDF : International DOI Foundation / Intel Developer Forum
IDI : Initial Domain Identifier
IDL : Interactive Data Language (Kodak/RSI) / Interface Definition Language / Internet Defense League
IDLE : International Date Line East (GMT+1200)
IDM : Integrated Document Management / Identity Management
IDML : International Development Markup Language
IDMS : Integrated Database Management System
IDN : Internationalised Domain Names (rfc 3490)
IDNA : Internationalizing Domain Names in Applications
IDOL :Intelligent Data Operating Layer
IDP : Individual Data Processing / Internetwork Datagram Protocol / Intelligent Document Platform (Adobe) / International Drivers Permit / Internally Displaced Person / Intrusion Detection and Prevention
IDPF : International Digital Publishing Forum
IDR : Intelligent Document Recognition
IDRP : (OSI) Inter-Domain Routing Protocol
IDS : Integrated Directory Services (rfc 2970) / Intrusion Detection System / Integrierte Datenstation Steuerung / Information Diffusion System
IDSA : Interactive Digital Software Association
IDT : Interrupt Descriptor Table
IDTV : Integrated Digital TV
IDU : Interface Data Unit
IDW : Inventor Drawing Document (CAD format)
IDWG : Intrusion Detection Working Group
IEC : International Electrotechnical Commission (CEI : Commission Electrotechnique Internationale)
IEEE : Institute of Electrical and Electronic Engineers
IEIS : Integrated Earth Information Servers
IEN : Internet Experiment Note
IEPC : InterEnvironment Process Communication
IERS : International Earth Rotation Service
IESG : Internet Engineering Steering Group
IET : Indiana Eastern Standard Time
IETF : Internet Engineering Task Force
IETM : Interactive Electronic Technical Manual
IFA : Internet Fraud Alert
IFF : Identification Friend or Foe / Interchange File Format
IFG : Interactive Format Generator / Inter-Frame Gap
IFL : Integrated Facility for Linux (® IBM)
IFPI : International Federation of the Phonographic Industry
IFR : Instrument Flight Regulations / Interactive Fax Response
IFRB : International Frequency Register Board
IFRS : International Financial Reporting Standard
IFS : Input Field Separator / Integrated File System (AS400) / Integrated Forecasting System / Iterated Function System / Internet File System (Oracle) / Inter Frame Space
IGBT : Insulated Gate Bipolar Transistor
IGCP : Inter-Gatekeeper Communication Protocol
IGD : Internet Gateway Device
IGES : Internationial Graphic Exchange Specification
IGF : Internet Governance Forum
IGIP : Icon-based Graphical Interactive Programming
IGMP : Internet Group Management Protocol (rfc 5790)
IGN : Institut Géographique National / IBM Global Network
IGOS : Integrated Global Observing Strategy
IGP : Interior Gateway Protocol / Internet Global Phone
IGRP : Interior Gateway Routing Protocol (® Cisco)
IHA : I hate acronyms / Internet Home Alliance
IHM : I hate Microsoft / Interface Homme-Machine
IHS : Internal Hostile Structured
IID : Instance ID (rfc 6969) / Interface Identifier
IIM : Information Interchange Model
IIN : Issuer identifier number
IIOP : Internet Interoperable Object Protocol
IIS : Internet Information Server (Microsoft)
IISS : International Institute for Strategic Studies (London) / Institute for Integrated Sensor Systems
IKE : Internet Key Exchange
IKEv2 : Internet Key Exchange Protocol Version 2 (rfc 5798)
IKM : Input-Keying Material
iLBC : internet Low Bitrate Codec ILC : Instruction Length Code / International Leased Carrier
ILDP : Information Leak Detection and Prevention
ILE : Integrated Language Environment
ILEC : Independent Local Exchange Carrier
ILM : Information Lifetime Management
ILMI : Interim Local Management Interface
ILNP : Identifier-Locator Network Protocol (rfc 6741)
ILP : Information Leak Prevention / Information Lifecycle Protection
ILS : Instrument Landing System / Internal Link Service / Infraction à la Législation sur les Stupéfiants / Internet Locator Server / International Launch Services / International Latitude Service
IMA : Interactive Multimedia Association / Inverse Multiplexing for ATM
IMAP : Internet Message Access Protocol (rfc 2060, 3501) / Interactive Mail Access Protocol
IMBE : Improved MultiBand Excitation
IMC : Internet Mail Consortium / International Medical Corps / Independent Media Center / Instrument Meteorological Conditions
IMD : InterModulation Distortion
IMDb : the Internet Movie Database
IME : Input Method Engine
IMEI : International Mobile Equipment Identification
IMF : Internet Message Format (rfc 5322)
IMHO : In my Humble Opinion
IMO : Information Market Observatory / In my Opinion / International Maritime Organization
IMOS : Integrated Maritime Operations System
IMP : Interface Message Processor / Internet Message Protocol
IMR : Interrupt Mask Register / Internet Monthly Reports
IMS : Information Management System / IP Multimedia Subsystem / International Measurement System (Sailing gauge) / CIA DO/Information Management Staff / Internet Mail Service
IMSI : International Mobile Subscriber Identity
IMSP : Interactive Mail Support Protocol (ACAP)
IMT : International Mobile Telecommunications
IMTC : International Multimedia Telecommunications Consortium
IMU : Inertial Measurement Unit
IMUG : Information Management User Group
INA : Integrated Network Architecture (©Cabletron)
INES : International Nuclear Event Scale / Institut National de l'Energie Solaire
INM : Integrated Network Management
INP : Intelligent Network Processor
INRA : Institut National de la Recherche Agronomique (Fr) / Instituto Nacional de la Reforma Agraria (Bol)
INS : Institut National de Statistique / Information Network Services (IBM) / Integrated Network Solutions(Cy) / Immigration and Naturalization Service / Inertial navigation system
INSP : Intelligent Network Service Provider
InTA : International Trademark Association
IOC : Input Output Controller / Immediate or cancel / Inversion of Control / Integrated optical circuit / Indicator of compromise
IOM : Individual Ordinary Member
ION : Institute of Navigation / Internetworking Over NBMA
IOP : Input Output Processor / Internetworking Operating System (Cisco)
IOS : Internetwork Operating System (Cisco™) / Intel Online Service / Information Object Security / iPhone Operating System
IOT : Input Output controller Table / InterOperability Testing / Inter-Operator Tariff / Internet of Things
IOV : Input Output Virtualization
IPA : International Phonetic Alphabet / The International Phonetic Association / iPhone Application
IPAD : Integrated Packet Assemly/Disassembly
IPAM : IP address Management
IPBL : IP Based Listing
IPBX : IP Branch eXchange
IPC : Inter-Process Communication / Internet Policy Committee (APWG) / Information protection and control
IPCC : International Panel on Climatic Change
IPCE : Inter-Process Communication Environment
IPCP : IP Control Protocol (rfc 1332)
IPCS : International Programme on Chemical Safety
IPDS : Intelligent Printer Data Stream (RFC 2708) / IBM Personal Dictation System
IPFIX : IP Flow Information Export (Cisco, RFC 5101-5103)
IPFS : InterPlanetary File System
IPFW : Internet Protocol Firewall
IPG : Interactive Procedure Generator
IPI : Informations Personnellement Identifiantes (PII)
IPL : Initial Program Load / Internet Public Library
IPLS : IP-only LAN Service
IPM : Internet Presence Management / Image per minute
IPMI : IP Multicast Initiative / Intelligent Platform Management Interface
IPMS : InterPersonal Messaging Service
IPN : InterPlatform Network
IPng : (Projet) IP next generation
IPNS : ISDN PABX Networking Specification
IPP : Internet Printing Protocol
IPPM : IP Performance Metrics (rfc 5644, 6576)
IPR : Intellectual property rights
IPS : Intrusion Prevention System / In Plane Switching
IPSE : Initiative on Privacy Standardization in Europe
IPSec : IP Security
IPSP : IP Security Policy
IPT : IP Telephony / Inventor Part Document (CAD format) / Identity Protection Technology
IPTC : International Press and Telecommunications Council
IPTO : Information Processing Techniques Office
IPTV : Internet Protocol Television
IPU : Instruction Processing Unit
IPX : Internetwork Packet eXchange (Netware) (IPX WAN: rfc 1362)
IRB : Integrated routing and bridging
IRC : Internet Relay Chat / International Reply Coupon / International Rescue Comittee / Innovation Relay Centre / Indice de rendu de couleur
IRD : Internet Resources Database / Infra Red Data / Integrated Receiver Decoder / Intelligent Resource Director (IBM)
IrDA : Infrared Data Association
IRED : Infra-Red Emitting Diode
IRG : Internet Resource Guide
IRI : Internationalized Resource Identifier (rfc 3987)
IRIS : Internet Registry Information Service / International Radio-Interferometric Surveying / Incorporated Research Institutions for Seismology
IRL : In Real Life / Industrial Robot Language
IRLP : Internet Radio Linking Project
IRM : Institut Royal Météorologique / Information Resource Management / Information Risk Management / IERS Reference Meridian / imagerie par résonance magnétique
IRMS : Integrated Radio Management System / Integrated Resource Management System
IRO : Include Route Object (rfc 7896)
IRON : Internet Routing Overlay Network (rfc 6179)
IRP : IERS Reference Pole
IRPA : International Radiation Protection Association
IRQ : Interrupt Request
IRQL : Interrupt Request Level / Information Retrieval Query Language
IRR : Internet Routing Registry
IRS : Information Retrieval Service / Internal Revenue Service / Inertial Reference System
IRSG : Internet Research Steering Group
IRT : Institut für Rundfunktechnik
IRTF : Internet Research Task Force
IRU : Inertial Reference Unit
IRV : International Reference Version
ISA : Industry Standard Architecture / Internet Security and Acceleration (Microsoft proxy/Server - Stirling) / Intelligent Speed Adapter / Instrumentation Software Automation / Interoperability Solutions for European Public Administrations / Instrument Society of America / Intelligent System Architecture (Nokia) / Interregional Satellite Based Augmentation System over Africa-Indian ocean region
ISAC : Information Sharing & Analysis Center
ISAD : International Standard Archival Description
ISAM : Indexed Sequential Access Method / Intelligent Services Acces Manager
ISBD : International Standard Bibliographic Description
ISBN : International Standard Book Number
ISC : Internet Software Consortium / Internet Solution Centre / (SANS) Internet Storm Center
ISCC : IEEE Symposium on Computers and Communications / Institut des sciences de la communication du CNRS / International Sustainability & Carbon Certification / Integrated Solar Combined Cycle
ISCD : Interface Switching Capability Descriptor (rfc 8258)
iSCSI : Internet Small Computer Systems Interface (RFC 3720)
ISD : Internal Symbolic Dictionary / Integrated System Development (BULL) / International subscriber dialing
ISDM : Interactive Study and Documentation on Multimedia
ISDN : Integrated Services Digital Network
ISE : Integrated Storage Element / Intelligent Switching Engine / Information Sharing Environment
ISFE : Interactive Software Federation of Europe
ISFW : Internal Segmentation FireWall
ISG : Industry Specification Group
ISI : Information Sciences Institute
ISIF : Information Society Innovation Fund
ISIS : Institute for Science and International Security / Integrated Services for Information Systems / Integrated Standby Instrument System / Intermediate system to intermediate system / "Intranet sécurisé interministériel pour la synergie gouvernementale"
ISL : Inter satellite link / Intermediate System Language / Inter-Switch Link
ISLL : International Services on high-speed Leased Lines
ISM : Information System Management / Integrated System Management (BULL) / Industrial, Scientific and Medical (frequency bands) / International Safety Management (IMO)
ISMA : Internet Streaming Media Alliance
ISMS : Information Security Management Systems
ISN : Initial sequence number
ISNI : International Standard Name Identifier
ISO : International Standard Organisation / ISO 9660 = CDFS / Interactive Support Online / Instituut voor Scheikundig Onderzoek / Infrared Space Observatory / Information Security Officer
ISOC : Internet Society
ISP : Internet Service Provider / Internet Standards Process / Image signal processor
ISPA : Internet Service Provider Association
ISPL : Information Services Procurement Library
ISR : Interrupt Status Register / Integrated Services Router / Intelligence, Surveillance, and Reconnaissance
ISRG : Internet Security Research Group
ISS : Internet Security Scanner / Integrated Switching System / Integrated Site Security / International Space Station
ISSA : Information Systems Security Association
ISSLL : Integrated Services over Specific Link Layers
ISSN : International Standard Serial Number
ISSW : Italtel iMSS based Softswitch solution / ISCA (International Speech Communication Association) Speech Synthesis Workshop / International Snow Science Workshop
IST : India Standard Time / Israel Standard Time / Information Society Technologies / Intelligent Scanning Technology
ISTF : Internet Societal Task Force
ISTR : Internet Security Threat Report
ISUP : Integrated Services Digital Network (ISDN) User Part (RFC 3578)
ISV : Independant Software Vendor
ITA : Information Technology Agreement
ITAR : International Traffic in Arms Regulations
ITC : Inter Task Communication / Integrated Terminal Controller / Independent Television Commission / International Typeface Corporation
itdb : iTunes Database (File Extension) / (IAEA) Illicit Trafficking Database / Integrated Tsunami Database
ITFS : Instructional Television Fixed Service
ITIF : Information Technology and Innovation Foundation
ITIL : IT Infrastructure Library
ITM : Internet Traffic Management
ITO : Indium Tin Oxide
ITOT : ISO Transport Service on top of TCP
ITR : International Telecommunications Regulations / Ingress Tunnel Router
ITRF : International Terrestrial Reference Frame
ITRS : International Terrestrial Reference System / International Technology Roadmap for Semiconductors
ITS : Intelligent Transportation System / Incompatible Time-sharing System
ITSC : Information Technology Steering Comittee
ITSM : IT Service Management
ITSP : Internet Telephony Service Provider
ITU : International Telecommunications Union / Intermodal Transport Unit
ITV : Interactive TeleVision
ITW : In-the-Wild
IUC : Information Unit for Conventions (UNEP)
IUG : Interactive Users' Guide
IUSR : Industry USability Reporting
IVA : International Voice Association / Integrated Voice Application / Intelligent Video Analysis
IVR : Integrierte DatenübertragungsVorRechner (Siemens) / Interactive Voice Response
IVS : Internet via satelite / International VLBI Service for Geodesy and Astrometry / Intelligent Video Surveillance
IVVI : Intelligent Vehicle based on Visual Information
IWF : Internet Watch Foundation / Interworking Function
IWU : InterWorking Unit
IXP : Internet eXchange Point
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J2CA : Java 2 Connector Architecture
J2EE : Java 2 Enterprise Edition
J2ME : Java 2 Micro Edition
J2SE : Java 2 Standard Edition
JAAS : Java™ Authentication and Authorization Service
JAB : Just Another Backdoor
JaD : Java Decompiler / Java Application Descriptor
JAM : Jump Address Memory
JAP : Java Anon Proxy
JAR : Java ARchive (file format) / Joint Aviation Requirement (Eur)
JAWS : Job Access With Speech
JAXP : Java API for XML Processing
JBIG : Joint Binary Image Group
JBOD : Just a Bunch Of Disks
JCA : Java Cryptography Architecture
JCB : Job Control Block
JCE : Java Cryptography Extension
JCL : Job Control Language
JCP : Java Certified Programmer / Java Community Process
JDBC : Java DataBase Connectivity
JDE : Java Development Environment
JDK : Java Development Kit
JDS : Java Desktop System
JEPP : Joint Electronic Public Procurement
JFIF : JPEG File Interchange Format
JGR : Java GUI for R (language)
jgw : JPEG World (file format)
JINI : Java Intelligent Network Infrastructure
JIS : Japanese Industrial Standards
JISC : Joint Information Systems Committee (uk) / Japanese Industrial Standards Committee
JIT : Just In Time
JLK : Japanese Language Kit
JMS : Java Message Service
JNI : Java Native method Interface
JOB : Java Open Business
JOG : Joint Operations Graphic (map)
JOSM : Java OpenStreetMap
JPEG : Joint Photographic Experts Group (ISO 10918)
JPX : JPEG 2000 or JBuilder Project filename extension
JQS : Java Quick Starter
JRD : JSON Resource Descriptor (rfc 6415)
JRE : Java Runtime Environment
JSDE : JavaScript Development Environment / Joint Service Data Exchange / Japan Society for Design Engineering
JSE : Java Standard Edition / Java Script Editor
JSF : JavaServer Faces
JSI : Job Scheduler Improvements
JSON : JavaScript Object Notation
JSP : Java Server Page
JSSE : Java™ Secure Socket Extension
JSSS : JavaScript-Based Style Sheets
JST : Japan Standard Time
JTA : Java Technical Architecture / Joint Technical Architecture (Mil)
JTAG : Joint Test Action Group (norme IEEE 1149.1)
JTC : Joint Technical Committee
JTM : Job Transfer and Management
JUG : Java User group
JVM : Java Virtual Machine
JWS : JSON Web Signature (rfc 7797)
JWT : JSON Web Token
 
KARP : Keying and Authentication for Routing Protocols (rfc 6518, 6952)
KAS : Kerberos Authentication Server
KBA : Kraftfahrt BundesAmt / Knowledge Based Authentication
KDC : Key Distribution Center / Kodak Digital Camera (format)
KDD : Knowledge Discovery in Database
KDE : K Desktop Environment (Linux/BSD)
KDF : Key Derivation Function
KEM : Key Encapsulation Mechanism
KGEM : Kernel Generalized Event Management
KIDS : Keep the Internet Decent and Safe
KISS : Keep It Simple Stupid / Keep It Smart & Simple
KMC : Key Management Center
KMD : Kernel Mode Driver
KMI : Koninklijke Meteorologisch Instituut
KMIP : Key Management Interoperability Protocol (OASIS)
KML : Keyhole Markup Language
KMP : Key Management Plan
KMZ : zipped KML
KPI : Key Performance Indicators
KPTI : Kernel Page Table Isolation
KSA : Kane Security Analyst
KSDS : Key Sequenced Data Set
KSK : Keyword signing key
KSN : Kaspersky Security Network
KSR : Keyboard Send/Receive
KST : Korea Standard Time
KSV : Key Selection Vector
KTS : Key Telephone System
KVM : Keyboard-Video-Mouse / Kernel-based virtual machine
KYC : Know your customer
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L2TP : Layer 2 Tunneling Protocol
LAA : Licensed Assisted Access (3GPP/LTE) / Locally Administered Address
LAAS : Local Area Augmentation System (GPS extension)
LAB : Legal Advisory Board
LABP : Link Access Procedure Balanced (X.25)
LAC : Local Alarm Center / Local Area Communications / L2TP access concentrator (CISCO)
LACP : Link Aggregation Control Protocol
LAFS : Least-Authority File System
LAG : Link Aggregation Group
LAL : List All Logging / Local Analog Loopback (test)
LAMP : Linux Apache MySQL PHP/Perl/Python
LAN : Local Area Network / Light At Night
LANE : Local Area Network Emulation
LAP : Link Access Protocol
LAPB : Link Access Procedure Balanced
LAPD : Link Access Protocol for ISDN D channels / Los Angeles Police Department
LAPM : Link Access Procedure Modem
LAPP : Linux Apache PostgresSQL PHP
LAR : Large Account Reseller
LART : Linux Advanced Radio Terminal
LAS : Laboratory Automation Software
LAST : Long Archival Store Technology
LAT : Local Area Transport (Digital™) / Lowest Astronomical Tide / Local Apparent Time
LATA : Local Access Transport Area
LAU : Line Access Unit
LAVC : Local Area VAX Cluster
LBA : Logical Block Addressing
LBN : Logical Block Number
LBR : Low-Power and Lossy Network Border Router (rfc 7102)
LBRV : Low Bit-Rate Voice
LBS : Location Based Service
LBV : Layered Biometric Verification
LCA : Life Cycle Analysis / Architecture / Assessment / Library Copyright Alliance
LCC : Local Cluster Controller / Local C Compiler / Linux Core Consortium / Life Cycle Cost / Line-commutated converter
LCD : Liquid Crystal Display / Long Connectivity Disruptions (rfc 6069) / Lowest Common Denominator
LCEN : Loi pour la confiance dans l'économie numérique
LCG : Linear congruential generator
LCMS : Learning Content Management System / Liquid chromatography - mass spectrometry
LCN : Local Communications Network
LCP : Line Control Protocol / Location Configuration Protocol / Linux Copy Party
LCR : Liste de certificats révoqués (CRL)
LCS : Liquid Crystal Shutter / Large Computer Systems / Live Communications Server
LCT : Line Connected Terminal / Layered Coding Transport (rfc 5651)
LCV : Last Character Visibility
LDA : Local Delivery Agent
LDAP : Lightweight Directory Access Protocol (IPP)
LDC : Long-distance call / LLVM D Compiler / Linguistic Data Consortium / Least-Developed Country
LDIF : LDAP Data Interchange Format
LDL : Local Digital Loopback (test)
LDML : Locale Data Markup Language
LDO : Long Distance Operator / Low-Dropout (Regulators)
LDOC : Lond Distance Operational Control
LDP : Label Distribution Protocol (rfc 5036, 5561) / Linux Documentation Project
LDPC : Low-Density Parity Check
LDT : Laser Data Terminal
LEAN : Light, Encrypted, Ad choice supported & Non-invasive
LEAP : Lightweight Extensible Authentication Protocol
LECS : LAN Emulation Configuration Server
LED : Light Emitting Diode
LEL : List Error Logging
LEMP : Linux - EngineX (Nginx HTTP SERVER) - Mysql - PHP) server
LEO : Low-Earth Orbital (satellite network)
LEP : Large Electron Positron (collider)
LERG : Local Exchange Routing Guide
LES : LAN Emulation Server / Land Earth Station / Leading Edge Services
LFA : Loop-Free Alternate (rfc 5286, 6571, 8102)
LFB : Logical Function Blocks (rfc 5812)
LFI : Local file include (in PHP)
LFO : Low Frequency Oscillator
LFS : Log-structured file-system / Linux from scratch
LFSR : Linear feedback shift register
LFU : Least Frequently Used
LGPL : (GNU) Lesser (Library) General Public License
LHP : Logical Half-Page
LHR : Last-Hop Router
LIDS : Linux Intrusion Detection System
LIFO : Last In First Out
LIG : Locator/ID Separation Protocol Internet Groper (rfc 6835) / Lawful Interception Gateway (GSM)
LIGA : Lithograph Galvanoforming Abforming
LiLo : Linux Loader
LIM : Lotus Intel Microsoft
LIME : Landline, Internet, Mobile, Entertainment (cable system)
LIMS : Laboratory Information Management System
LIN : Local Interconnect Network (<CAN)
LINC : Logic Information Network Compiler
LINQ : Language Integrated Query
LINX : London Internet Exchange
LION : LinkedIn Open Networkers / Lower Indian Ocean Network
LIP : Location Information Protocol / Language Interface Packs
LIR : Local Internet Registry
LIS : (Local) Location Information Server (rfc 5986) / Logical IP Subnet
LISA : Language Independant Speech Assembler / Laser Interferometer Space Antenna
LISP : Locator/ID Separation Protocol (RFC 6830-6836)
LIU : Line Interface Unit
LKM : Loadable Kernel Module
LKML : Linux Kernel Mailing List
LLA: Link-local address
LLAP : LocalTalk Link Access Protocol
LLB : Low Level Bootloader
LLC : Link Layer Control (FDDI) / Logical Link Control / Low Level Compatibility / Limited Liability Company
LLDD : Licence de Libre Diffusion des Documents
LLDP : Link-Layer Discovery Protocol [IEEE.8021AB]
LLF : Low Level Format
LLM : Line Layout Manager / Master of Laws
LLN : Low-Power and Lossy Networks (RFC 6550)
LLP : Lower Layer Protocol
LLU : Local loop unbundling
LLVM : Low Level Virtual Machine
LMA : Local mobility anchor
LMAP : Large-scale Measurement of Broadband Performance (rfc 7536)
LMDE : Linux Mint Debian Edition
LMDS : Local Multi-point Distribution Service
LMF : License Management Facility / Lexical markup framework
LMI : Local Management Interface
LMMS : Linux MultiMedia System
LMP : Link Management Protocol (rfc 4204)
LMR : Land Mobile Radio
LMS : Learning Management System / Library Management System / Least Mean Squares
LMSS : Land Mobile Satellite Services
LMTP : Local Mail Transfer Protocol
LNA : Low-Noise Amplifier
LNB : Low Noise Blockconverter (sat. antenna)
LNCS : Lecture Notes in Computer Science
LNK : (LiNK) filename extension (Shortcut/raccourci MS Windows)
LNS : L2TP network servers (CISCO)
LOC : Lines of Code
LOIC : Low Orbit Ion Cannon (network test) / Laboratory of International Communications (Japan)
LoLa : Local Language
LOM : Learning Object Metadata / Lights-out management
LoRa : Long range, low power wireless
LOS : Line-of-Sight
LoST : Location-to-Service Translation (rfc 5222, 5964)
LPA : Log Periodic Antenna
LPC : Linear Predictive Coding (voice digitalization) / Lars Pensjö C (language)
LPCM : Linear Pulse Code Modulation
LPD : Line Printer Daemon (protocol) / Low probability of detection / Low Power Device (433 MHz)
LPDA: Log Periodic Dipole Array
LPE : Liquid Phase Epitaxy / Location Portability Extra
LPF : Low Pass Filter / League for Programming Freedom
LPI : Linux Professional Institute / Logiciel Potentiellement Indésirable / Location Portability Intra / Low Probability of Intercept (Radar)
LPIC : Linux Professional Institute Certification
LPP : Licensed Program Product
LPR : Line Printer Remote protocol / Line Parameter Register
LPS : Local port scan
LPWAN : Low Power Wide Area Network
LPX : Lean Packet Exchange / Low Profile eXtension
LQI : Link Quality Indicator
LRA : Local Registration Agent
LRAD : Long Range Acoustic Device
LRC : Longitudinal Redundancy Check / Loop Resiliency Circuit / Listes de Révocation de Certificats (CRL)
LRD : Linking Root Domains
LRDD : Link-based Resource Descriptor Document
LRE : Long Range Ethernet / Left-to-Right Embedding
LRO : Left-to-Right Override / Lunar Reconnaissance Orbiter
LRP : Long Range Planning
LRR : Laser Retro Reflector
LRTS : Library Resources & Technical Services
LRU : Line replaceable unit / Least Recently Used
LSA : LAN Security Architecture / Link State Advertisement / Latent semantic analysis / Light Sport Aircraft
LSAP : (LLC) Link Service Access Point
LSB : Linux Standard Base / Least Significant Bit / Lower SideBand
LSC : Lambda-Switch-Capable (rfc 6205)
LSDB : Link-State Database
LSG : Load Signal Generator
LSH : Locality Sensitive Hashing
LSI : Large Scale Integration / Loi sur la Société de l'Information
LSL : Link Support Layer
LSM : Linux Software Map
LSN : Large Scale NAT
LSNAT : Load Sharing using IP Network Address Translation (rfc 2391)
LSO : Local Shared Objects
LSP : Label Switched Path (rfc 4829, 5814)
LSQ : Launch Services Quarantine
LSR : Label Switching Router
LSS : Local Supervision Station / Layer Setting Services
LSST : Large Synoptic Survey Telescope
LST : Local Sidereal Time
LSU : Local Support Unit
LSZH : Low Smoke, Zero Halogen
LTB : Local Token ring Bridge
LTC : Linear Time Code
LTD : Level Test Design
LTE : Line Terminating Equipment / Long-term Evolution (Nokia 3GPP/4G)
LTO : Linear tape Open / Long Tem Operation
LTP : Licklider Transmission Protocol (rfc 5326,7116)
LTPS : Low Temperature PolySilicon
LTR : Long Terminal Repeat / Left-to-right (text or table)
LTS : Line Status Table / Long Term Support / Local Terminal Support
LTSP : Linux Terminal Server Project
LTU : Line Terminating Unit
LUA : Lindows User Association / Lua (script language)
LUF : Lowest Usable Frequency
LUKS : Linux Unified Key Setup
LUN : Logical unit number
LUP : Last Used Page / Least User Privilege
LUT : Look-Up Table
LVD : Low Voltage Differential
LVDD : Logical Volume Device Driver
LVDS : Low Voltage Differential Signaling
LVDT : Linear variable differential transformer
LVM : Low speed Voice Module / Logical Volume Manager / Linux Virtual Machine
LWE : Learning with Errors (crypto)
LWF : LuraWave files
LWSP : linear-white-space
LXR : Linux Cross-Reference
LZH : Lempel-Ziv H format
LZMA : Lempel-Ziv-Markov chain Algorithm
LZO : Lempel-Ziv-Oberhumer (compression algorithm)
LZS : LaufZeit System
LZW : Lempel-Zif Welch
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MAAD : Memory Array Address Driver
MAC : Message Authentication Code / Medium Access Control (address) / Multiplexed Analogue Components / Multi Access Computer / Memory Access Controller / Mandatory access control / Master Auxiliary Concept
MACF : Mandatory Access Control Framework
MACS : Motorola Advanced Computer Society / Modular Attitude Control System
MAD : Mutual Acceptance of Data / Magnetic anomaly detector
MADI : Multichannel Audio Digital Interface
MADM : Memory Array Data Multiplexer
MAE : Macintosh Application Environment (Sun)
MAG : Mobile access gateway
MAM : Media Access Module / Mobile application management
MAMP : Macintosh Apache MySQL PHP
MAN : Metropolitan Area Network
MAP : Mobile Access Protocol / Mobile Application Part (GSM) / Mobile Antenna Platform / Managed Access Point / Manufacturing Automation Protocol / (NATO) Membership Action Plan / Middle Atmosphere Program / Mobility Anchor Point
MAP-E : Mapping of Address and Port with Encapsulation (rfc 7597)
MAPI : (Microsoft) Messaging Application Program Interface / Movement Against Pedophilia on Internet / Mission Interministérielle pour l'Accès Public à la Micro-Informatique, à l'Internet et au Multimédia
MAPP : Microsoft Active Protection Program
MAPS : Mail Abuse Prevention System / Meteorological Aeronautical Presentation System
MAP-T : Mapping of Address and Port using Translation (rfc 7599)
MAQ : Modulation d'amplitude en quadrature (=QAM)
MAR : Microsoft Authorised Refurbisher
MARC : MAchine-Readable Cataloging
MARF : Modular Audio Recognition Framework (TALN)
MARS : (Cisco Security) Monitoring, Analysis and Response System / Mobile augmented reality system / Major Accident Reporting System [Eur-MAHB]
MAS : Multiprotocol access service (SNA) / Mobile authentication server (TETRA) / Mac App Store
MAT : Metadata Anonymisation Toolkit
MAU : (external) Medium Attachment Unit / Media Access Unit / Multistation Access Unit / Maintenance Unit / Modular Avionics Unit
MAWI : Measurement and Analysis of WIDE-area Internet
MBA : MacBook Air / MailBox A... (Sentry)
MBB : Mobile Broadband (networks) / Make Before Break (contact)
MBCS : Multi-Byte Character Set
MBM : Multiple BitMap (filename extension)
MBMS : Multimedia Broadcast Multicast Service
MBP : MacBook Pro / Million Book Project
MBR : Master Boot Record / Memory Buffer Record / Maritime Broadband Radio
MBS : Mobile Broadband System / Maximum Burst Size (ATM) / Maritime Buoyage System / Microsoft Business Solutions
MBSS : Mesh Basic Service Set
MBSA : Microsoft Baseline Security Analyzer
MCA : Micro-Channel Architecture / Multi-Channel Access / Maritime and Coastguard Authority / mandatory access control
MCAS : Magstripe Card Access System / Microsoft Certified Application Specialist
MCB : Message Control Block / Mobile Certificate Builder / Mobile Children's Book
MCC : Manufacturers Compatibility Comittee / Mobile cloud computing / Multiversion concurrency control (MVCC)
MCCI : European Multimedia Communications Community of Interest
MCDU : Multifunction Control Display Unit
MCDV : Maximum Cell Delay Variation (ATM)
MCF : Meta-Content Format
MCFS : Migrating Cache File System
MCGA : Modified Colour Graphics Adapter
MCGP : Multi Control Gateway Protocol
MCID : Malicious Call IDentification
MCL : Macintosh Common Lisp / Maximum contaminant levels
MCM : (Cisco) Multimedia Conference Manager
MCNS : Multimedia cable Network System partners Ltd.
MCP : (block-based) Motion Compensated Prediction (in MPEG) / Multi-Chip Package / Modular Content Producer / Microsoft Certified Professional
MCPC : Multiple Channel Per Carrier
MCPD : Microsoft Certified Professional Developer / Monochloro Propanediol
MCR : MultiChannel Roaming / Minimum Cell Rate (ATM)
MCS : Multi Channel Switch / Multinational Character Set / Media Convergence Center / Modulation and coding scheme
MCSA/E/D : Microsoft Certified Systems Administrator/Engineer/Developer
MCT : Metric Color Tag / Mainframe Class Tape
MCTD : Maximum Cell Transfer Delay
MCU : Multipoint Control Unit / Memory Card Utility
MCX : Micro coaxial / Managed Client for OS X / Multi Commodity Exchange of India Ltd
MDA : Monochrome Display Adapter / Missile Defense Agency / Model Driven Architecture / Mail delivery agent
MDAC : Microsoft Data Access Component
MDB : Master Directory Block / Micosoft Access Database (filename extension)
MDCT : Modified Discrete Cosine Transform
MDD : Multidimensional Discrete Data
MDH : Managed Dedicated Hosting
MDI : Mainframe Device Interface / Multiple Document Interface / Medium-Dependent Interface
MDM : Master Data Management / Mobile Device Management
MDMS : Mobile Device Management Suite
MDN : Mobile Directory Number (Cellular) / Message Disposition Notification
mDNS : Multicast Domain Name System
MDPA : Mobile Device Privacy Act
MPDU : Medium Access Control Protocol Data Unit
MDQS : Management Data Query System (JDS)
MDS : MetaData Server / Methods Development Software / Multi-point Distribution Service / Microwave Design System / Missile Defense System / Minimun Data Set / Mobile Data System (Blackberry service) / Maximum Distance Separable (matrix)
MDT : Mean Down Time / Mobile Data Terminal
MDU : Multi-dwelling unit
MEAP : Multifunctional Embedded Application Platform
MEC : Mean Effective Concentration
MEF : Metro Ethernet Forum
MEG : Mean Effective Gain
MEID : Mobile Equipment Identifier (CDMA)
MEL : Minimum Equipment List
MEM : Multipath Extension Module
MEMS : Micro-Electrical Mechanical Systems
MEO : Medium Earth Orbit
MER : MAC Encapsulated Routing
MES : Mobile Earth Station / Manufacturing Execution System
MESA : Mobility for Emergency and Safety Applications
MET : Middle East Time / Mission Elapsed Time / Mobile Electronic Transactions
METS : Metadata Encoding and Transmission Standard
MExE : Mobile Execution Environment
MFA : Mail Filtering Agent / Multi-Factor Authentication
MFC : Microsoft Foundation Class (library)
MFD : Multi-Function Display
MFM : Modified Frequency Modulation
MFP : Multifunction Peripheral
MFS : Macintosh File System
MFSK : Multi Frequency Shift Keyed
MFST : Multifunction Smart Device Terminal
MFT : Master File Tables / Managed File Transfer
MGA : Multimedia Graphics Architecture
MGCP : Media Gateway Control Protocol (rfc 6498)
MGRS : Military Grid Reference System
MGW : Media Gateway
MHEG : Multimedia Hypermedia Expert Group
MHL : Mobile High-Definition Link
MHP : Multimedia Home Platform
MHS : Message Handling Sytem
MIB : Management Information Base (rfc 3395, 6933)
MIC : Microwave Integrated Circuit / Message Integrity Check / Market Identification Code / Media Interface Connector (cable) / (South Korean) Ministry of Information and Communications / Microsoft Innovation Center
MICE : Multi-media International Conferencing for European researchers
MICP : Mobile Internetworking Control Protocol
MICR : Magnetic Ink Character Recognition
MID : Mobile Internet Device / MapInfo interchange format/TomTom Navigator file (extension)
MIDI : Musical Instrument Digital Interface
MIDP : Mobile Information Device Profile
MIF : Management Information File/Format / MapInfo Interchange Format
MIFF : Magick image file format
MIGS : Mobile Integrated Geospatial Intelligence System
MIIS : Microsoft Identity Integration Server
MILP : Mixed - Integer Linear Programming
MIM : Media Interface Module / Metal Insulator Metal (diode)
MIME : Multipurpose Internet Mail Exchange (rfc 1341; 2045->2048; 4648)
MIMO : Multiple Input Multiple Output
MIN : Multistage Interconnection Network
MIND : Macintosh Internet Name Daemon / Mobile Internet Navigation Device
MIO : Modular Input/Output
MIP : Multichannel Interface Processor (Cisco) / Megaframe Initialization Packet (SFN)
MIPA : Mutual Internet Practices Association
MIPS : Microprocessor without Interlocking Pipeline Stages / Million Instruction Per Second
MIS : Management Informaion System / Metal Insulator Semi-conductor
MISO : Master-In-Slave-Out
MISP : Malware Information Sharing Platform
MIST : Marine Interactive Satellite Technologies / Mobile integrated survey team
MIT : Massachusset Institute of Technology / Midway Islands Time
MitB : Man-in-the-Browser
MITM : Man-in-the-Middle
MKMP : Modular key management protocol
MKV : Matroska Video
MLC : Master Link Control / Multi-Line Controller (rfc 241) / Multi Level Cell
MLD : Multicast Listener Discovery (rfc 5790)
MLE : Maximum Likelihood Estimation
MLLW : Mean Lower Low Water
MLM : Multi-Level Marketing / Mailing List Manager
MLP : Mobile Location Protocol
MLPP : Multi-Level Precedence and Pre-emption
MLS : Multi-Level Security / Microwave landing system / MultiLayer Switch
MMA : Mobile Marketing Association
MMAC : MultiMedia Access Center
MMC : Micro-Mainframe Connection / MultiMedia Memory Card / MultiMedia Controller / Microsoft Management Console / Malicious Mobile Code
MMCS : MultiMedia Control Software
MMD : Mixed Mode Delivery
MMDS : Multichannel Multipoint Distribution Service / Maintenance Management Data System
MME : Mobility Management Entity
MMF : Multiple Master Fonts / MultiMode Fiber Optic Cable / Make Money Fast / Mobile Manufacturers Forum
MMHS : Military Message Handling System (rfc 6477)
MMI : Multi Media Interface / Marine Metadata Interoperability / Man-Machine Interface
MMIC : Monolithic Microwave Integrated Circuit
MMN : Module Magic Number (Apache)
MMO : Massively Multiplayer Online (gaming)
MMPC : Microsoft Malware Protection Center
MMR : Modified Modified READ / Multimode Receiver
MMS : Modular Measurement System / Manufacturing Message Standard / Multimedia Messaging Service / Microsoft Media Server
MMSC : Multimedia Message Service Center
MMSI : Maritime Mobile Service Identity
MMSS : Maritime Mobile Satellite Service
MMST : Microsoft Media Server (using) TCP
MMU : Memory Management Unit
MNC : Mobile Network Code
MNE : Modèle Numérique d'Elévation
MNO : Mobile Network Operator
MNP : Microcom Network Protocol / Mobile Number Portability
MNS : Microwave Nonlinear Simulator / Managed Network Service
MNT : Modèle Numérique de Terrain
MOB : Man Over Board / Multimedia Outlet Box
MOC : Microsoft Official Curriculum / Mobile Originated Call / Microsoft Office Communicator
MOF : Microsoft Operations Framework / Meta Object facility
MOL : Maximum Output Level / Macintosh On Linux
MOM : Messaging Oriented Middleware / MS Operations Manager
MOO : Multiple-user domain Object Oriented
MOOC : Massive open online course
MOP : Maintenance Operation Protocol
MOPS : Minimum Operational Performance Standards
MORT : Management Oversight and Risk Trees
MOS : Metal Oxide Semi-conductor / Multimedia Operating Software / Margin of Safety / Mean Opinion Score / Microsoft Office Specialist
MOSI : Master-Out-Slave-In
MOSS : MIME Object Security Services / (Macintosh File Creator=Netscape)
MoU : Memorandum of Understanding (1989/CEPT)
MP3 : MPEG Layer 3
MPA : Microsoft Product Activation / Moving Picture Accelerator / Motion Picture Association
MPAA : Motion Picture Association of America
MPC : Memory Protect Check
MPDN : Multi-Peer Distribution Network
MPDS : Mobile Packet Data Service
MPEG : Motion Picture Expert Group (audio/video file format)
MPFM : Motion Picture File Manager
MPFS : Multi Protocol File System
MPI : Multiprecision integer / Multi-Path Interference / Multi-Processor Interconnect / Message Passing Interface
MPL : MultiProgramming Level / Mozilla Public License / Mathematical Programming Language
MPLS : Multi-Protocol Label Switching (rfc 3031, 3063, 3270, 4023) / Modified Partial Least Squares
MPM : Multi-Processing Module (Apache)
MPN : Most Probable Number
MPOA : Multi-Protocol over ATM
MPP : Massively Parallel Processor
MPPC : Microsoft Point-To-Point Compression Protocol
MPPS : Multiple Points of Presence Support / Million Packets Per Second
MPQS : Multiple Polynomial Quadratic Sieve
MPR : MultiProtocol Router
MPS : Mobile Positioning System / Managed print services / Melting Pot Script
MPSA : Microsoft Personal Security Advisor
MPT : MultiPort transceiver
MPTA : Macintosh Programmer's Toolbox Reference
MPTN : Multi-Protocol Transport Networking
MPW : Macintosh Programmer's Workshop
MPX : Memory Protection Extensions
MQAM : Modified Quadrature Amplitude Modulation
MQV : Menezes-Qu-Vanstone protocol
MRAM : Magnetic Random Access Memory
MRCP : Media Resource Control Protocol
MRCU : Motorized Rig Control Unit
MRJ : MacOS Runtime for Java
MRM : Mobile Resource Management
MRP : Multicast Routing Protocol / Manufacturing Resource Planning
MRS : Media Recognition System / Magnetic Resonance Spectroscopy
MRTD : Machine Readable Travel Documents
MRTG : Multi Router Traffic Grapher
MRU : Maximum-Receive-Unit
MSA : Multi-Source Agreement / Mail Submission Agent
MSAP : MAC Service Access Point
MSAS : Multi-functional Satellite Augmentation System
MSAU : Multistation Access Unit (MAU)
MSAW : Minimum Safe Altitude Warning
MSB : Most Significant Bit/Byte
MSC : Medium-Speed Concentrator / Mobile Switching Center / Message Service Center
MSCS : MicroSoft Cluster Server
MSD : Modem Sharing Device
MSDE : Microsoft Data Engine
MSDN : MicroSoft Developer Network
MSDP : Multicast Source Discovery Protocol
MSDS : Material Safety Data Sheets
MSE : Master Scan Enable / Microsoft Security Essentials
MSF : Multiple Sequence File / MehrfachSteuerung Fern (Siemens) / Microsoft Solutions Framework
MSG : Meteosat Second Generation
MSH™ : Multi-Service Hub
MSI : Microsoft Installer
MSK : Minimum Shift Keying (GSM)
MSM : Multi Select Memory / Methyl Sulfonyl Methane
MSN : Mobile social networking / MehrfachSteuerung Nah (Siemens) / MicroSoft Network / Manufacturer Serial Number / Message Sequence Number / Multiple Subscriber Number (ISDN)
MSNP : Microsoft Notification Protocol / Mobile Status Notification Protocol
MSO : MultiService Operator
MSP : Microsoft Paint / Microsoft Project / Maintenance Service Provider / Multiplex Section Protection
MSRC : Microsoft Security Resource Center
MSRN : Mobile station roaming number (GSM)
MSRP : Message Session Relay Protocol (rfc 4975) / MPLS-TP Shared-Ring Protection (rfc 8227)
MSRT : Malicious Software Removal Tool
MSS : Mobile Satellite System / Managed Security Services / Maximum segment size / Multiprotocol Switched Services
MSSP : Managed Security Services Provider
MST : Magnetic Secure Transmission / Mountain Standard Time
MSTM : Multi Source Track Management
MSTP : Multiple Spanning Tree Protocol
MSV : Medium Speed Variant (protocol)
MSVC : MicroSoft Visual C++
MSW : MagnetoStatic Wave
MTA : Message Transfer Agent / Mail Transport Agent / Mode de Transfert Asynchrone (ATM)
MTBF : Mean Time Between Failures
MTE : Mobile Telecommunication Equipment
MTF : Modulation Transfer Function / Monitoring the Future
MTHR : Mobile Telecommunications and Health Research Programme
MTIS : Modern Threat Intelligence Software
MTN : Main Telecommunication Network (GTS) / Maritime Telecommunications Network / Mobile Telephone Network
MTP : Multicast Transport Protocol / Message Transfer Part / Media Transfer Protocol / Mesures techniques de protection / Multi-fiber Termination Push-on
MTR : Mobile Termination Rates / Magnetic Tape Recorder / Materials Testing Reactor
MTS : Message Transfer Service / Microsoft Transaction Server / Methods for Testing and Specification / Many-Time Signature
MTTR : Mean Time To Repair
MTU : Maximum Transmission Unit
MTX : Mobile Telephone eXchange
MUA : Mail User Agent
MUD : Multi-User Domain / Multi-User Dungeon (game)
MUF : Maximum Usable Frequency
MUG : Macintosh Users Group
MUI : Multilingual User Interface
MUNG : Mash Until No Good
MUP : Multiple UNC Provider
MUPS : Medically unexplained physical symptoms / Medication Use Process Survey / Missing and Unidentified Persons System
MUTE : Multi-User Text Environment
MUX : MultipleXer
MVA : Multi domain Vertical Alignement
MVC : Modèle-Vue-Contrôleur (Model View Controller (Microsoft)) / Multi Virus Cleaner
MVCC : Multiversion concurrency control
MVIP : Multi-Vendor Interface Protocol
MVNO : Mobile Virtual Network Operator
MVP : Multi-Vendor Platform / (Microsoft) Most Valuable Professional / Model Validation Program
MVPN : Multicast Virtual Private Network (rfc 6516)
MVS : Mobile Voice Server / Multiple Virtual Storage (IBM) / Microsoft Visual Studio
MWG : Metadata Working Group
MWI : MicroWave Imaging / Mobile Web Initiative
MWL : MicroWorld Winsock Layer
MWR : MicroWave Radiometer
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NAC : Network Access Control / Network Address Control / Natural Area Code / Network Admission Control (Cisco)
NAD : North American Datum (coordinates)
NADC : North American Digital Cellular
NAE : Netware Application Engine
NAG : Numerical Algorithms Group
NAI : Network Access Identifier (RFC 4282) / Network Advertising Initiative
NAM : Network Access Method / Narrowband Amplitude Modulation
NAMPS : Narrowband Advanced Mobile Phone Service (800 MHz)
NAND : Not AND (logic)
NANP : North American Numbering Plan
NAP : Network Automation Protocol / Network Access Protection / Network Access Provider
NAPT : Network Address Port Translation (syn PAT)
NAS : Network Application Support / Network Access Server / Network Alarm System / Network Attached Storage / Numerical Aerodynamic Simulation / Non-Access Stratum / National Audience Survey (uk) / National Airspace System (US) / Naval Air Station / Network Audio System
NAT : Network Address Translation (rfc 2663,3022)
NATD : Network Address Translation Daemon / North American Association of Telecommunication Dealers
NAU : Network Addressable Unit
NAUN : Nearest Active Upstream Neighbor (Token Ring)
NAV : Norton AntiVirus / Network allocation vector
NAWS : Negotiate About Window Size
NBFM : Narrow Band Frequency Modulation
NBM : Network Based Mobility / Novell Border Manager
NBMA : Non Broadcast Multi Access (rfc 2491)
NBP : Name-Binding Protocol
NBS : National Bureau of Standards (now: NIST)
NBSS : NetBIOS Session Service
NCA : Network Computinf Architecture / New Colour Algorithm (MultiSync¨)
NCBI : National Center for Biotechnology Information
NCC : Network Competence Center / Netware Control Center / National Coordination Center
NCI : NATO Communications and Information (Agency)
NCL : Network Control Language
NCO : Numerically Controlled Oscillator
NCP : Network Control Protocol (rfc 9-179) / Netware Core Protocol / National Contact Point
NCQ : Native Command Queuing
NCRP : National Council on Radiation Protection
NCRR : National Center for Research Resources (of NIH)
NCS : Network Computing System / National Character Set / Network Control System / Natural Color System / National Communications System
NCSA : National Center for Supercomputing Applications (Univ of Illinois) / National Computer Security Association (see ICSA)
NCSC : National Cyber Security Center / Nederlandse cybersecuritycentrum
NCSD : National Cyber Security Division
NCSG : ICANN's Non-Commercial Users Stakeholder Group
NCSS : Non-Comment Source Statement
NCTR : National Center for Toxicological Research
NCU : Network Control Unit
NCUC : Non-Commercial Users Constituency
NDA : Non-disclosure agreement
NDAS : LPX Lean Packet Exchange
NDB : Non-Directional Beacon / Navigational Data Base / NetWare DataBase
NDBC : National Data Buoy Center (NOAA)
NDE : Non-Destructive Evaluation
NDI : Network Device Interface / Network Distributed ISDN
NDIF : New Disk Image Format (DiskCopy - TidBITS #339)
NDIS : Network Driver Interface Specification
NDM : Nucleus Device Management
NDMP : Network Data Management Protocol (port 10000)
NDO : Named Data Objects
NDP : Neighbor Discovery Protocol
NDR : Non-Delivery Report / Net user data rate
NDS : Network Distribution System / Netware/Novell Directory Services
NDSA : National Digital Stewardship Alliance
NDT : Network Diagnostic Tool / Nondestructive testing / Newfoundland Daylight Time
NEA : Network Endpoint Assessment / Near Earth Asteroid
NED : Network Enterprise Domain
NEF : Nikon Electronic File
NEMA : National Electric Medical Association / National Electrical Manufacturers Association / National Emergency Management Association
NEMO : Network Mobility Working Group (IETF, rfc 6089) / Navy Earth Map Observer
NEP : Network Element Processor / Network Entry Point
NER : Named-entity recognition
NERC : North American Electric Reliability Corporation / National Engineering Robotics Contest / Natural Environment Research Council (uk)
NERD : a Not-so-novel Endpoint ID (EID) to Routing Locator (RLOC) Database (rfc 6837)
NET : Normes Européennes de Télécommunications / Network Entity Title (DEC) / Near East Time / Network for Electronic Transfers
NEU : Network Encryption Unit
NEXT : Near-End crossTalk
NFC : Near Field Communications / Normalization Form (canonical) Composition
NFD : Normalization Form (canonical) Decomposition
NFKC : Normalization Form (compatibility) Composition
NFKD : Normalization Form (compatibility) Decomposition
NFM : Narrowband Frequency Modulation
NFR : Not for resale / Novell File Reporter
NFS : Network File System (rfc 7530) / Number Field Sieve
NFV : Network Function Virtualization
NGA : National Geospatial-Intelligence Agency (formerly NIMA)
NGDC : New Generation Data Center
NGEO : Non-geostationary (satellite) / Natural Gas Engine Oil
NGI : Next Generation Identification
NGMN : Next Generation Mobile Networks
NGN : Next Generation Network
NGS : Next-Genaration Switch / National Geodetic Survey
NHC : Notebook Hardware Control / National Hurricane Center
NHDP : Neighborhood Discovery Protocol (rfc 6130)
NHRP : Next Hop Resolution Protocol (rfc 2332-33)
NIA : Network Interface Adapter / Next Instruction Address
NIC : Network Interface Card / Network Information Center
NICE : Network Information and Command Exchange / National Institute of Clinical Excellence (uk)
NICI : National information and communication infrastructure
NID : Nane IDentifier
NIDS : Network Intrusion Detection System
NIFF : Navy Image File Format / GameBryo file format
NII : National Information Infrastructure
NIM : Network Installation Management / Nuclear Instruments and Methods
NIMA : National Imagery and Mapping Agency (now NGA)
NIMS : Near Infra-red Mapping Spectrometer
NIP : Numéro d'identification personnel (=PIN)
NIPC : National Infrastructure Protection Center
NIPS : Network Intrusion Prevention System / Network Information and Planning System
NIR : National Internet Registries / Non-Ionizing Radiation / Near Infra-Red
NIS : Network and Information Security / Network Information System / Norton Internet Security / Network Infrastructure and Security
NISO : National Information Standards Organization
NIST : National Institute of Standards and Technology (former NBS) / Network Information Security & Technology News
NIT : Network information table / Network Investigative Technique
NITF : National Imagery Transmission Format
NIU : Network Interface Unit
NIUF : North American ISDN Users' Forum
NIZK : Non-Interactive Zero Knowledge
NLA : Next-Level Aggregation (rfc 2450)
NLC : Natural Language Compiler
NLI : Network Layer Interface
NLM : Netware Loadable Module
NLMS : Normalized least-mean-square
NLP : Natural Language Processing
NLQ : Near Letter Quality
NLR : Natural Language Reasoning
NLRI : Network Layer Reachability Information
NLS : Native Language Support
NLSP : Network Layer Security Protocol / NetWare Link Services Protocol
NLTK : Natural Language ToolKit
NMAP : Networked Messaging Application Protocol
NMB : Network Message Block
nmbd : netbios nameserver (daemon)
NMC : National Meteorological Center / Network Media Centre
NMCS : NetManage Client Services
NMDA : Network Management Datastore Architecture (rfc 8342)
NMEA : National Maritime Electronics Association
NMI : Non Maskable Interrupt
NML : Network Manager Listener
NMP : No Moving Parts / Nokia Mobile Phones / Native Multipath Plugin (VMware)
NMR : Network Measurement Results
NMS : Network Monitoring System / National Meteorological Services / Neuroleptic Malignant Syndrome
NMT : Nordic Mobile Telephone
NNI : Network to Network Interface / Nederlands Normalisatie-Instituut
NNFMP : Newman No-Frills Mail Protocol (Yahoo)
NNP : Number of the Next Page
NNSC : NSF Network Service Center
NNSS : Navy Navigation Satellite System
NNTP : Network News Transfer Protocol
NOAA : National Oceanic and Atmospheric Administration
NOC : Network Operations Center / National Office for Cyberspace
NOR : Not OR (logic)
NORM : NACK-Oriented Reliable Multicast (Transport Protocol) (rfc 5740)
NOS : Network Operating System / Nokia Operating System
NOTAM : Notice To Air Men
NPA : Numbering Plan Area / Number Portability Association
NPAD : Network Path & Application Diagnostics
NPE : Network Protection Equipment
NPI : Numbering Plan Identifier
NPM : Network Performance Monitor / Node Package Manager
NPML : Noise-predictive maximum-likelihood
NPMP : Network Peripheral Management Protocol
NPP : Number of the Previous Page
NPSI : Network control program Packet Switching Interface
NPTN : National Public Telecomputing Network
NPVR : Network-based Personal Video Recorder
NRA : National Regulatory Authority / Nœud de Raccordement d'Abonnés
NREN : National Research and Education Network
NRI : Networked Readiness Index
NRIC : National Registration Identity Card / Network Reliability & Interoperability Council
NRO : Number Resource Organisation / Noeud de raccordement optique / National Reconnaissance Office
NRPB : National Radiological Protection Board (uk)
NRPM : Number Resource Policy Manual
NRR : No Reply Required / Noise Reduction Rating
NRS : Novell Replication Services / National Response System
NRTK : Network real-time kinematic
NRTM : Near Real Time Mirror
NRW - Nikon RaW image (filename extension)
NRZI : Non Return to Zero Inverted
NS/VT : Network Services/Virtual Terminal (H-P)
NSA : National Security Agency / Never Say Anything
NSAP : Network Service Access Point (rfc 1637)
NSC : National Science Comittee / Network Security Center / Network Services Conferences / National Security Council / NoSuchCon
NSCP : National Scalable Cluster Project / National Space Communications Program
NSD : Name Server Daemon
NSDB : Namespace Database
NSDI : National Spatial Data Infrastructure
NSE : Nmap Scripting Engine
NSF : National Science Foundation / Network Supervisory Function / Norges StandardiseringsForbund
NSFW : Not Safe For Work
NSF56K : Not Safe For 56K (modems)
NSH : Network Service Header
NSI : Non SNA Interconnect / Network and Systems Integration / Network Software Installer / NASA Science Internet / Network Side Interface / National Security Institute
NSIS : Next Steps in Signaling (Working Group) (RFC 5978)
NSL : Network Services Location / National Security Letter
NSLP : NSIS Signaling Layer Protocol (RFC 5974)
NSM : Non-Spacing Mark / Network Security Master
NSMF : Network Security Management Framework
NSO : Names Supporting Organisation
NSP : Network Services Provider / Native Signal processing
NSPM : National Security Presidential Memorandum
NSPP : National Servers Pilot Project
NSRC : Network Startup Resource Center
NSS : Network Statistics System (Tandem) / NetShield Security Suite (McAfee) / Namespace Specific String (rfc 2141) / Network Subsystem / Network Security Services
NST : Newfoundland Standard Time / New Zealand Standard Time
NSU : Network Service User
NSW : Norton SystemWorks (Symantec)
NTA : NitriloTriAcetate
NTCB : Network Trusted Computing Base
NTCR : NT Challenge/Response (NTLM)
NTF : Nouvelle Triangulation de la France
NTFS : New Technology (Windows OS) File System
NTI : Network Termination Interface / Noeud de Transit International (Transpac)
NTIA : National Telecommunications and Information Administration
NTIS : National Technical Information Service
NTLM : NT LAN Manager (Microsoft Windows)
NTLP : Network Transport Layer Protocol
NTML : National Traffic Management Log (Aviation)
NTO : Network Terminal Option
NTOC : National Threat Operations Center (NSA)
NTP : Network Time Protocol (rfc 868) / National Toxicology Program
NSPM : Network Security & Policy Manager
NTRU : N-th degree truncated polynomial ring (crypto)
NTSC : National Television Standards Comittee
NTT : Nippon Telegraph and Telephone
NUA : Network User Address
NUD : Neighbor Unreachability Detection
NUI : Network User Identifier
NUMA : Non-uniform Memory Access
NVD : National Vulnerability Database
NVDA : NonVisual Desktop Access
NVIS : Near Vertical Incidence Skywave
NVME : Non volatile memory express
NVP : Normal Velocity of Propagation
NWP : Numerical Weather Prediction
(Retour au début)
 
OAI : Open Archives Initiative
OAIS : Open Archival Information System
OAM : Operations, Administration, and Maintenance
OAR : One-ARM Routing
OAS : Oracle Application Server
OASIS : Organization for the Advancement of Structured Information Standards / Over-the-Horizon Airborne Sensor Information System
OAV : Original Animation Video (= OVA)
OBD : On-Board Diagnostics
OBE : (Java) Open Business Engine
OBEX : Object Exchange (technology)
OBIA : Object-Based Image Analysis
OBM : Optimized Bandwidth Management (Cisco) / Open Business Model / OutBoard Motor / Oil Based (drill) Mud
OBU : On-Board Unit
OCAP : Open Crypto Audit Project
OCB : Offset Codebook mode
OCE : Open Collaborating Environment / Orbital and Clock Error
OCF : Open Container Format / Open Connectivity Foundation
OCI : Oracle Call Interface
OCL : Object Constraint Language
OCLC : Online Computer Library Center
OCM : Operation Control Manager
OCN : Optical Carrier Network
OCR : Optical Character Recognition
OCS : On-Chip Sequencer / Office of Cyber Security (uk) / OpenSource clone system (Clonezilla)
OCSP : Online Certificate Status Protocol (RFC 2560, 4557, 4806, 5019)
OCW : OpenCourseWare (MIT)
ODA : Open Document Architecture
ODBC : Open DataBase Connectivity
ODF : Open Document Format / ODF Formula (filename extension) / Optical distribution frames
ODI : Optical Disk Interface / Open Datalink Interface / Open Driver Interface (Novell®) / ODF Image (filename extension)
ODIF : Open Document Interchange Format
ODL : Open Document Language
OLDS : Open Learning Design Studio / Online Detainee Locator System
ODM : Open Data Model / Object Database Manager / ODF textMaster (filename extension) / Original Design Manufacturer
ODMA : Open Document Management API
ODP : Open Data Protocol / Open Distributed Processing / Open Directory Project / ODF Presentation (filename extension)
ODR : Ontrack Data Recovery
ODS : Operational Data Store / ODF Spreadsheet (filename extension)
ODSR : Optical Disk Storage and Retrieval
OED : Oxford English Dictionary
OEIS : On-Line Encyclopedia of Integer Sequences / Overseas Environmental Impact Statement
OEL : Organic Electroluminescent
OEM : Original Equipment Manufacturer
OER : Open Educational Resources (en français REL)
OFAC : Office of Foreign Assets Control (US)
OFB : Output FeedBack
OFDM : Orthogonal Frequency Division Multiplexing
OGB36 : Ordnance survey of Great Britain 1936
OGC : Open Geospatial Consortium
OGF : Open Grid Forum (rfc 6453)
OGG : "Operation Good Guys" (Xiph multimedia file format)
OGL : Open Government Licence (uk)
OGM : Organismes Genetiquement Modifies / OutGoing Message / Ogg Media (File format)
OGSA : Open Grid Services Architecture
OGV : ogg Video (format)
OHCI : Open Host Controller Interface
OIA : Operator Information Area (EM78= 3278/79 Emulation)
OIF : Office for Intellectual Freedom
OII : Open Information Interchange (European Commission)
OIP : Open Internet Project / Office of Intellectual Property
OIS : Office Information Systems
OIW : OSI Implementers' Workshop
OKBC : Open Knowledge Base Connectivity protocol
OKE : Open Key Exchange
OKN : Open Knowledge Network
OLAP : On-Line Analytical Processing
OLE : Object Linking and Embedding
OLED : Organic Light-Emitting Diode
OLIT : Open Look Intrinsic Toolkit
OLO : Other Licence Opertorator
OLPC : One Lap-top Per Child / Orthogonal Linear Predictive Coding
OLS : Operational Linescan System / Online System / Ordinary Least Squares
OLSR : Optimized Link State Routing (RFC 3626)
OLT : Optical line termination
OLTE : Optical Line Terminating Equipment
OLTP : On-Line Transaction Processing
OMA : Open Mobile Alliance
OMC : Operation Maintenance Center / Organisation Mondiale du Commerce
OMCT : Open Merging Content Technology
OMDR : Optical Memory Disk Recorder
OME : Open Measurement Environment
OMF : Object Management Facility / Open Media Framework
OMG : Object Management Group / Oh My God
OML : Outbreak Markup Language
OMR : Optical Mark Recognition
OMS : Open Music System / Open Message System / Oceanografisch Meteorologisch Station
OMT : Object Modeling Technology
ONC : Open Network Computing
ONE : (Sun/Cisco) Open Net Environment / Overlay Networking Environment
ONF : Open Networking Foundation
ONI : Open Net Initiative
ONIX : Online Information eXchange
ONP : Open Network Procedure
ONS : Object Naming Service
ONX : Open Network eXchange
OOA : Object Oriented Ananlysis
OODB : Object Oriented Data Base
OOB : Out Of Band
OOK : On-off keying
OOP : Object-Oriented Programming
OOSD : Object-Oriented Structured Design
OPA : Open Patent Alliance (www.openpatentalliance.com)
OPAC : On-line Public Access Catalog
OPC : OLE Process Control
OPD : OmniPage Document (filename extension)
OPF : Open Packaging Format
OPG : Online Policy Group
OPGW : Optical (Power) Ground Wire (IEEE 1138)
OPI : Open Prepress Interface
OPKP : Offline private key protocol
OPML : Outline Processor Markup Language
OPS : Oracle Parallel Server / Open Proxy Stopper / Office of Public Safety / Operation Performance Standards / Open Publication Structure
OPTA : Onafhankelijke Post en Telecommunicatie Autoriteit (nl) / Operational Programme Technical Assistance
OQL : Object Query Language
ORB : Object Request Broker / Observatoire Royal de Belgique
ORBL : Open Relay Black List
ORBS : Open Relay Behaviour-modification System
ORCA : Optimized Robot for Chemical Analysis
ORDB : Object-Relational DataBase
ORF : Outbound Route Filter (rfc 7543)
ORM : Object-relational mapping / Online Reputation Management / Object-Role Modeling
ORT : Operation Response Time / Ovh Redirect Technology
OSAK : OSI Application Kernel
OSC : Ohio Supercomputer Center / Open Source Center (CIA) / Open Sound Control
OSCA : Open Systems Cabling Architecture / Open Source Channel Alliance
OSD : Open Software Description / On-Screen Display
OSDB : Open Source Database Benchmark
OSDL : Open Source Development Labs
OSDN : Open Source Developer Network
OSF : Open System Facility / Open Software Foundation
OSG : Open Systems Group / Open Science Grid
OSGB : Ordnance Survey of Great Britain (geodetic coordinates)
OSI : Open System Interconnection / Open Source Index / Other Supplementary Information / Online Software Inspector / Oficial de Seguridad Informatica / Ocean Specialists, Inc.
OSL : Optimization Subroutine Library / Object Support Lib
OSLO : Open Source and Linux Organization (HP Linux group) / Open Standaard voor geLinkte Overheden
OSM : Open Street Map / (Oracle Communications) Order and Service Management
OSPF : Open Shortest Path First (rfc 2328)
OSPP : Open Shortest Path Protocol
OSS : Open Source Software / Operational Storage Site / Operations Support System / Open Sound System (Linux)
OST : Offline Storage (Outlook file extension) / (analyse) Object, Sujet, Technique
OSTA : Optical Storage Technology Association
OSU : Outdoor Subscriber Unit / Optical Services Unit / Optical Scanning Unit
OTA : Office ot Technology Assessment / Over The Air
OTD : (FBI) Operational Technology Division / Observed time difference
OTDR : Optical Time Domain Reflectometry
OTF : OpenType Font / Open Telecommunications Framework (ECTF) / On-the-Fly
OTFE : On-The-Fly (disk) Encryption
OTG : On-The-Go
OTI : Open Technology Initiative
OTL : OldTimer ListIt (anti-malware)
OTM : Optical Transport Module
OTN : Optical Transport Network
OTOH : On The Other Hand
OTP : One-Time Programmable / One-Time Password / OpenDocument Presentation Template (filename extension)
OTR : Off-the-Record (encrypted messaging)
OTRK : One-time random key
OTRS : Open-source Ticket Request System
OTS : One-Time Signature
OTT : Over The Top
OUI : Organisation Unique Identifier (IEEE)
OVA : Open Virtualization Alliance / Original video animation (= OAV)
OVD : Open Virtual Desktop
OWA : Outlook Web Access
OWASP : Open Web Application Security Project
OWC : Office Web Components (Microsoft) / Other World Computing (Corp.)
OWL : Object Windows Library / Ontology Web Language
OWNI : Objet Web Non Identifié
OWS : Open Whisper Systems / Optional WhiteSpace
OZR : OnderzoeksRaad
(Retour au début)

P3P : Platform for Privacy Preference Project
PABX : Private Automatic Branch eXchange
PAC : Proxy auto-config (file)
PACI : Partnerships for Advanced Computational Infrastructure
PACS : Public Access Computer System / Picture Archiving and Communication System
PAD : Packet Assembly Disassembly / Portable Application Description
PADI : PPPoE Active Discovery Initiation (rfc 2516)
PAE : Power-Added Efficiency / Physical Address Extension
PAF : Personal Ancestor File
PAI : Publicly Available Information / Product Authentication International (UK)
PAKE : Password-authenticated key agreement
PAL : Phase Alternate Line / Protocol Adaption Layers / Priviledged Architecture Libray / Point, Area, Line source algorithm / Permissive Action Links / PanAfrican Localization project
PAM : Pulse Amplitude Modulation / Pluggable Authentication Module / Primary Access Method / Payload Assist Module / Presonal Access Management
PAMR : Public Access Mobile Radio
PAN : Personal Area Network / Primary account number
PANA : Protocol for Carrying Authentication and Network Access (RFC 4016,5609)
PAP : Printer Access Protocol / Password Auhentication Protocol / Push Access Protocol / Public Access Profile
PAPI : Point d'Accès Public à l'Internet
PARC : Palo Alto Research Center (Xerox)
PAS : Publicly Available Specifications / Personal Access System
PASE : Passive Start and Entry
PAST : Parrot Abstract Syntax Tree / Phased Array Systems and Technology
PAT : Port Address Translation
PATS : Publicly available telephone services / Passive Anti-Theft System
PAWS : Protect Against Wrapped Sequence (rfc 1323) / Protocol to Access White-Space (rfc 6953, 7545)
PBB : Provider Backbone Bridge
PBBA : Purpose-Built Backup Appliances
PBBS : Packet bulletin board station
PBC : Push Button Configuration
PBCA : PCI Bus to Channel Adapter
PBCC : Packet Binary Convolutional Coding
PBM : Portable BitMap (filename extension)
PBR : Partition Boot Record
PBT : Provider Backbone Transport
PBX : Private Branch eXchange
PCAP : Payload content within packet-capture (IBM) / Pachet Capture
PCB : PolyChlorinated Biphenyl- / Printed Circuit Board / Project Control Board
PCBC : Propagated Cipher Block Chaining
PCC : Path Computation Client / Proof-Carrying Code
PCCS : Pacific Caribbean Cable System
PCD : Photo Compact Disk (Kodak)
PCE : Phase Change Erasable / Path Computation Element (rfc 5671, 6123)
PCEP : Path Computation Element Communication Protocol (rfc 6006)
PCF : Preemption Control Function / Point Coordination Function / Position calculation function
PCI : Program Controlled Interrupt / Peripheral Component Interconnect (bus) / Payment Card Industry
PCL : Printer Command Language
PCM : Pulse Code Modulation / Plug Compatible Manufacturer / Project cycle management
PCN : Personal Communication Network / Pavement classification number (ICAO) / Pre-Congestion Notification (rfc 5670) / PointCast Network
PCNE : Protocol Converter for Non-SNA Equipment
PCP : Port Control Protocol (RFC 6887) / Privacy-Conscious Personalization
PCR : Program Count Register / Program Clock Reference / Polymerase Chain Reaction / Peak Cell Rate
PCRE : Perl-compatible regular expressions
PCRF : Policy and Charging Rules Function
PCS : Performance Control Subsystem / Personal Communication System
PCT : Physical Controller Table / Photometric Calibration Test / Private Communications Technology
PCTE : Portable Common Tool Environment
PCU : Packet Control Unit
PCV : Paiement contre vérification (ou à percevoir) / Phase center variation
PCX : (filename extension: Paintbrush format)
PDA : Personal Digital Assistant
PDB : Program DataBase (MS extension)
PDC : Personal Digital Cellular (Japan) / Professional Developer Conference (Microsoft) / Program Delivery Control
PDD : Portable Digital Document
PDE : Physical Device Extension table
PDF : Portable Data File / Portable Document Format / Package Definition File / Printer Description File / Pop Directional Format / Probability density function
PDH : Plesiochrone Digital Hierarchy
PDIF : Product Definition Interchange Format / Philips Digital Interface
PDL : Page Description Language
PDM : Product Data Management / Performance and Diagnostic Metrics (rfc 8250)
PDMS : Plant design management system / Propulsion and Data Management Subsystem / Polydimethylsiloxane / Poly Dimethyl Sulfate
PDN : Programmsystem für Datenfernverarbeitung und Netzsteuerung / Public Data Network
PDNS : PowerDNS
PDO : PHP Data Objects / Protected Designation of Origin
PDoS : Permanent Denial-of-Service
PDP : Programmed Data Processor (Digital Eq. Corp.) / Policy Development Process / Plasma display panel / Parallel Distributed Processing / Portable DVD (Digital Versatile Disc) Player
PDR : Physical Data Rate / Permanent Data Removal
PDS : Processor Direct Slot / Personnel Data System / Parallel Directory Structure / Planetary Data System / Physical Delivery Service / Professional Development System Premises Distribution System (™Systimax)
PDT : Physical Device Table / Prototype Debug Tool / Pacific Daylight Time
PDTR : Proposal Draft Technical Report
PDU : Protocol Data Unit / Packet data unit / Power distribution unit
PDUS : Primary Data User Station
PEAP : Protected EAP (Extensible Authentication Protocol)
PEAR : PHP Extension and Application Repository
PE-CE : ecProvider Edge to Customer Edge (rfc 6565)
PED : PIN Entry Device / Portable Electronic Devices / Pressure Equipment Directive
PEEK : PolyEtherEtherKetone / Portable Electrical Equipment Kit / Perceptions, Expectations, Emotions and Knowledge
PEGI : Pan-European Game Information
PEKS : Public key Encryption with Keyword Search
PEM : Privacy Enhanced Mail
PEP : Packet Exchange Protocol / Programmable Event Processor
PER : Packet Error Rate
PERL : Practical Extraction and Report Language
PERT : Program Evaluation and Review Technique
PET : Privacy Enhancing Technologies / Positron Emission Tomography / PolyEthylene Terephthalate
PETR : Proxy-ETR
PFC : Protocol Field Compression / Power factor correction
PFD : Primary Flight Display / Personal Floating Device / Process flow diagram
PFI : Provisional full internet (connection)
PFM : PIM Flooding Mechanism (rfc 8364)
PFO : Programme Flux Oceaniques
PFR : Portable Font Resource (rfc 3073)
PFS : Plug-in Finder Service / Perfect Forward Secrecy
PGA : Professional Graphics Adapter / Pin grid array
PGE : Parser Grammar Engine
PGM : Platine group metals
PGML : Precision Graphics Markup Language
PGP : Pretty Good Privacy (RFC 2440)
PHB : Per-hop behavior (RFC 2475, 3260)
PHI : Protected Health Information
PHP : Personal Handy Phone / Personal Home Page / PHP Hypertext Preprocessor
PHS : Personal Handyphone System
PIA : Privacy Impact Assessment / Private Internet Access
PIC : Personal Inteligent Communicator / Public Information Center / Peripheral Interface Controller
PICS : Platform for Internet Content Selection / Protocol Implementation Conformance Statement
PID : Prototype International Directory / Protocol IDentifier / Perimeter Intrusion Detection / Packet Identifier / Proportional-integral-derivative / Personnel increment number (=PIN)
PIDF : Presence Information Data Format (rfc 3863, 4119, 4480)
PIE : Personal Interactive Electronics / Persistent Identification Element
PIF : Program Information File
PIFS : Point coordination Inter Frame Spacing
PII : Personally Identifiable Information
PIM : Personal Identity/Information Manager / Port Interface Module / Plug-In Module / Protocol Independent Multicast / Passive InterModulation / PCI Interface Module / Protocol Independent Multicast
PIN : Personal Identification Number / P-type Insulator N-type barrier
PIO : Programmed Input/Output
PIP : Page Image Processor / Picture-in-Picture /  Pip Installs Packages / Pip Installs Python / Process Integration Packs
PIR : Protein Identification Resource / Peak Info Rate / Public Interest Registry
PIRE : Puissance Isotrope Rayonnée Équivalente
PISA : Providing Information about Internet Securiy Aspects
PITR : Proxy-ITR
PIU : Path Informaton Unit
PIV : Personal Identity Verification / Particle Image Velocimetry
PIX : Private Internet eXchange (ComTech/Cisco)
PJL : Printer Job Language
PKCS : Public Key Cryptography Standards (rfc 2313)
PKD : Public Key Directory
PKE : Public Key Encryption / Protection Key Enable
PKI : Public Key Infrastructure (RFC 3647, 4252)
PKIX : Public-Key Infrastructure X.509
PKM : Privacy Key Management / Personal Knowledge Management
PKP : Public Key Partners
PKT : Partition Knowledge Table
PLA : Programmable Logic Array
PLC : Power Line Communication / Programmable Logic Controller / Packet Loss Concealment
PLCC : Plastic Leaded Chip Carrier
PLCP : Physical Layer Convergence Procedure
PLD : Partitional Line Down / Programmable Logic Device
PLDA : Paperless Douane et Accises
PLIP : Parallel Line IP
PLL : Phase Locked Loop
PLM : Product Lifecycle Management
PLMN : Public and Land Mobile System
PLP : Packet Level Protocol (X.25)
PLT : Procedure Linkage Table / Pakistan Lahore Time / Power Line Transmission
PLU : Partitional Line Up
PMA : Portable Maintenance Aid / Portable Management Application
PMBO : Participating Mailbox Operations
PMC : PCI Mezzanine Card
PMD : Physical Medium Dependent / Polarization Mode Dispersion
PMH : Protocol for metadata harvesting
PMIPv6 : Proxy Mobile IPv6 (rfc 7287)
PMK : Pairwise Master Key (WPA2)
PMMA : Poly(methyl methacrylate)
PMML : Predictive Model Markup Language
PMMU : Paged Memory Management Unit
PMP : Point-to-Multipoint (architecture)
PMR : Private Mobile Radio
PMRF : Printing Manager Resource File
PMS : Pantone Matching System / Package Management System / Personnel Management System
PMSI : P-Multicast Service Interface (rfc 6514, 7385)
PMT : Provider Managed Tunnels
PMTU : Path Maximum Transmission Unit
PMU : Parametric Measurement Unit / Power Management Unit
PNC : Parity Non Conserving
PND : Personal Navigation Device / Portable navigation device
PNF : Personal NetFinder (Apple Web)
PNG : Portable Network Graphics (rfc 2083)
PNL : Passenger Name List / Programmation neuro-linguistique
PNM : Progressive Networks Metafile / Portabilité du Numéro Mobile
PNNI : Private Network Node Interface
PNO : Public Network Operator
PNR : Passenger Name Record
POC : Proof of concept / Point of Contact
POD : Performance Optimized Datacenter
PODA : Portable ODA
POE : Point of Entry / Power over Ethernet / Perl Object Environmen
POF : Polymer Optical Fibre
POI : Point of Interest
POJO : Plain Old Java Object
PON : Passive Optical Network
POP : Post Office Protocol (rfc 1957) / Point of Presence / Persistent Organic Pollutants
PORC : Puppets Orchestrated in Real time by Computer
POS : Point of Sale / parent over shoulder / Palm Operating System
POSH : PKIX over Secure HTTP (rfc 7711)
POSI : Promotion conference for OSI (in Japan)
POST : Power-on Self Test
POTS : Plain Old Telephone Service
PPA : Parallel Port Adaper (to SCSI; Jaz) / Policy Patrol Administration
PPC : Program-to-Program Communications / Power PC / Pay per Click / PIPE International's submarine Cable
PPCP : Power PC Platform
PPD : Protected Private Disk / Postscript Printer Description
PPDU : Presentation Protocol Data Unit
PPE : Property-preserving encryption
PPG : Push Proxy Gateway
PPI : Plane Position Indicator
PPM : Part per Million / Process Performance Measures / Pages per Minute / Portable PixelMap (format) / Probabilistic packet marking
PPP : Point-to-Point Protocol (rfc 1171) / Points par pouce / Public-private partnership / (P3P) Platform for Privacy Preference
PPPoE : PPP Over Ethernet (rfc 2516)
PPS : Precision Positioning Service (DGPS) / (Filename extension: PowerPoint)
PPSP : Peer-to-Peer Streaming Protocol (rfc 6972)
PPT : (Filename extension: PowerPoint format) / Public Pay Telephone
PPTP : Point-to-Point Tunneling Protocol
PPV : Pay-Per-View
PQAB : Palm Query Application Builder
PRA : Primary Rate Access / Probabilistic Risk Assessment / Project Risk Analysis / Plan de reprise d’activitéé
PRAM : Parameter RAM
PRBS : PseudoRandom Binary Sequence
PRBT : Personal Ring Back Tone
PRC : Product Representation Compact (Adobe file format)
PRCS : Personal Radio Communications Service
PRF : Pulse Repetition Frequency / Pseudo-Random Function
PRGA : pseudo random generation algorithm
PRI : Primary Rate Interface
PRIE : Packet Radio Internet Extension
PRK : PseudoRandom Key
PRL : Preferred Roaming List / Perl Programming Language (filename extension)
PRML : Partial-response maximum-likelihood
PRN : Packet Radio Network / Pseudo-Random Noise / Progressive Radio Network / Print file (extension)
PRNG : Pseudo-Random Number Generator
PROM : Programable Read Only Memory
PRPQ : Programming request for price quotation
PRQ : Photo Reproduction Quality
PRS : Primary Reference Source / Pseudo-random sequence / Public Regulated Service (Galileo) / Position Reporting System / Periodic Reinvestigation-Secret
PRT : Puerto Rico (standard) Time
PRTG : Paessler™ Router Traffic Grapher / Pseudo-Random Test Generator
PRTK : Password Recovery Toolkit
PSA : Public Service Announcement / Pluggable Storage Architecture
PSAP : Physical Service Acces Point / Public Safety Answering Point (rfc 5012, 5069)
PSC : Packet Switching Capable / Persona Session Collection / Protection State Coordination (rfc 7271)
PSD : Payment Service Directive / Port Sharing Device / PhotoShop Document (file format)
PSDN : Packet Switched Data Network / Public Switched Data Network
PSE : Page Size Extension
PSEC : Provable Secure Elliptic Curve (encryption)
PSI : Packetnet System Interface / Program Specific Information / Personal Software Inspector
PSIP: Program and system information protocol
PSK : Phase Shift Keying / Pre-Shared Key
PSM : Packet Switched Module / Polarization Shaping Method / Process safety management / Personal Security Manager / Platform Specific Model
PSN : Public Services Network / Packet Switch Node / Packet Switched Network / Program Sector Number / Processor Serial Number / plan de sauvegarde et de numérisation / Playstation Network
PSO : Protocol Supporting Organization
PSP : Payment Service Provider / Power Saving Protocol / PlayStation Portable (Sony)
PSS : Packet-Switched Streaming / Probabilistic Signature Scheme / Photonic Service Switch (Alcatel-Lucent)
PSSI : Politique de sécurité des systèmes d'information
PST : (US) Pacific Standard Time / Personal Storage Table (Microsoft extension)
PSTN : Public Switched Telephone Network
PTB : Processor Test Bus
PTC : Phase Tracking Circuit / Pacific Telecommunications Council / Positive Temperature Coefficient / Parents Television Council / Public Telephone Company
PTCC : Partial Time Control Center
PTF : Program Temporary Fix
PTFE : Polytetrafluorethylene
PTH : Plated-Trough Hole (in PCB)
PTK : Pairwise Transient Key
PTO : Public Telecommunications Operator / Patent and trademark office
PTP : Picture Transfer Protocol
PTR : Pointer Record
PTS : Proportional Type Start / Personnel Tracking System
PTT : Push-To-Talk
PTX : Proportional Type eXit
PTZ : Pan-Tilt-Zoom camera / Pacific Time Zone
PUA : PLC Utility Alliance / Private Use Area / Potentially unwanted applications
PUD : Penk's Underbred Distro (GNU/Linux based on Ubuntu)
PUF : Physically Unclonable Function
PUK : Personnel Unblocking Key
PUP : PARC Universal Packet (protocol) / Potentially unwanted program
PURL : Persistent Uniform Resource Locators
PVC : Permanent Virtual Circuit / Programmable Video Controller / PolyVinyl Chloride / Publications de la Vie Catholique
PVR : Personal Video (Digital) Recorder
PVS : Public Volume Set
PVST : Per-VLAN Spanning Tree
PWD : Present Working Directory
PWE : Palm Wireless Ethernet module
PWS : Password Stealer
PWM : Pulse width modulation
 
QAM : Quadrature Amplitude Modulation / (Q code: "communication instructions") Meteo observation
QAR : Quick Access Record / (Q code : arreter l'ecoute)
QBE : Query by Example
QCI : Query Competition Index / (Q code: 360-degree turn)
QCIF : Quarter Common Intermediate Format
QCL : Quantum Computer Language
QCM : Questionnaire à Choix Multiples / Quality Control Manager / Quartz Crystal Microbalance
QDF : Query deserves freshness / (Q code: "D-value" altitude correction)
QDOS : Quick and dirty operating system
QDR : Quadriennal Defense Review / (Q code) Relèvement magnétique
QED : Quantum ElectroDynamics / Quick Epicenter Determinations / (radiotelegraphy Q code) Follow the pilot vehicle / Quod erat demonstrandum (=CQFD)
QFA : Quick File Access / (Q code) Meteo forecast
QFD : Quality Function Deployment / (Q code) Visual beacon
QFE : Quick Fix Engineeringg (Microsoft hotfix) / (Q code) pression atmospherique a l'altitude de l'aerodrome
QFP : Quad Flatpack / (Q code) NOTAM information
QHD : Quad HD (High Definition)
QHE : Quantum Hall Effect / (Q code) leg of approach
QIC : Quarter Inch Cartridge / (Q code) contact radio frequency
QIF : Quicken Interchange Format / (Q code) using radio frequency
QIR : Query Intent Resolution
QKD : Quantum Key Distribution
QLLC : Qualified Logical Link Control
QMS : Quality Management System (UK)
QMTP : Quick Mail Transfer Protocol
QNX : Quantum™ unix os
QOS : Quality of Service
QPI : Quick Path Interconnect
QPL : Quantum Programming Language
QPSK : Quadrature Phase Shift Keying
QRH : Quick reference handbook / (Q code) Ma frequence varie-t-elle?
QRS : Quick Response System / (Q code) Envoyer plus lentement
QSA : Qualified Security Assessor / (Q code) Force des signaux
QSE : Qualité Sécurité Environnement / (Q code) estimated drift of the survival craft
QSV : Quick Sync Video / (Q code) Envoi répété de V
QTML : QuickTime Media Layer
QTV : QuickTime TV / Guard My Frequency (radiotelegraphy Q code)
QZSS : Quasi-Zenith Satellite System
(Retour au début)

RAC : (Oracle) Real Application Cluster / Remote access card
RACF : Resource Access Control Facility
RACS : Remote Access Connectiviy Service
RAD : Radiation Absorbed Dose / Rapid Application Development / Random Assessment Delay
RAD2 : Rapid Application Development & Deployment
RADIUS : Remote Authentication Dial-In User Service
RADSL : Rate Adaptative Digital Subscriber Line
RAI : Remote Alarm Indication
RAID : Redundant Array of Independant Disks / Recherche, assistance, intervention et dissuasion
RAIM : Receiver Autonomous Integrity Monitoring (GPS)
RAIN : Radio Amateur Information Network
RAIT : Redundant Array of Independant Tapes
RAM : Random Access Memory / Radar Absorbent Materials / (filename extension) RealAudio Media / Rechargeable Alkaline Manganese (battery)
RAMS : Rapid Acquisition of Multicast RTP Sessions (rfc 5751, 6659)
RAM-T : Reliability, Availability, Maintainability and Testability / Risk Assessment Methodology for Transmissions
RAN : Remote Async Node / Radio Access Network
RANA : RadioNavigation
RAP : Request-A-Print / Radio local loop Access Profile (ETS 300 765-1) / Réseau d'Automates Programmables
RAR : Remote Access Router / Return Address Register / Real Aperture Radar / Roshal ARchive (filename extension)
RARE : Réseaux Associés pour la Recherche Européenne
RARP : Reverse Address Resolution Protocol (rfc 903)
RAS : Row Address Select / Reliability, Availability, Serviceablity / Remote Access Service / Registration, Admission, Status / Rapid Alert System / Raster Sun Microsystems (file format) / Réflectance Anisotrope Spectroscopique
RAT : Remote Administration Tool / Radio Access Technologies / Remote access Trojan/Toolkit
RAVE : Rasterization Acceleration Virtual Engine
RAW : Read-After-Write
RBAM : Remote Batch Access Method
RBE : Routed Bridged Encapsulation
RBF : Rollback File (Microsoft)
RBL : Realtime Blackhole/Blocking List
RBM : Results Based Management
RBN : Russian Business Network / Reverse Beacon Network
RBOC : Regional Bell Operating Companies
RBP : Retinol Binding Protein
RBW : Resolution Bandwith
RC4 : Ron's Cipher Four
RCA : Root Cause Analysis
RCC : Routing Control Center / Ringing choke converter
RCD : Recordable Compact Disk
RCE : Remote code execution / Regional Coding Enhancement
RCL : Runtime Control Library
RCM : Reliability-centered maintenance / Report Card Maker
RCP : Remote Communications Processor / Remote Control Program / Rural Connectivity Platform / Réseau de Communication par Paquets / Rich Client Platform / remote copy (Unix command)
RCPI : Received Channel Power Indicator / Responsabilité civile des professions de l'informatique
RCS : Revision Control System / Remote communications software / Radio Communication System / Return Channel by Satellite / Radar Cross Section / Rich Communication Services
RCSR : Reverse Cross-Site Request
RCU : Remote Concentrator Unit
RDA : Recommended Daily Allowance / Remote Data Access / Remote Database Architecture
RDAP : Registration Data Access Protocol
RDBMS : Relational database management system
RDF : Resource Description Framework / Report Definition File / Radio Direction Finding
RDK : Rapid Development Kit
RDL : Remote Digital Loopback (test)
RDM : Replay Detection Method
RDMA : Reliability Data Management and Analysis / Remote Direct Memory Access / Rate-Division Multiple Access / Risk Data Management Application
RDMI : Radio Distance Magnetic Indicator
RDNS : Reverse Domain Name Server
RDO : Remote Data Objects
RDP : Reliable Data Protocol (RFC 908, 1151) / Remote Desktop Protocol (Microsoft)
RDS : Radio Data System / Reliable Datagram Sockets / (Microsoft) Remote Data Services / Registration Directory Services / Red para el Desarrollo Sostenible
READ : Relative Element Address Designate
RECN : Really Explicit Congestion Notification (rfc 7514)
REE : Rare earth elements
REM : Registered E-Mail / Remote Expansion Module / Radiation Equivalent Man / Rapid Eye Movement
REN : Ringer Equivalence Number
REP : REPlace / Risk Evaluation and Profiling
REPL : Read–eval–print loop
RER : Rack Entry Robot
REST : Representational State Transfer
RET : Resolution Enhancement Technology
RFA : Remote File Access / RöntgenFluoreszenz Analyse
RFB : Remote Frame Buffer (rfc 6143) / Retardateurs de flamme bromés (BFR)
RFC : Request For Comments - see rfc index
RFD : Ready-For-Data / Request for Discussion
RFI : Radio frequency Interface / Radio frequency Interference
RFM : Read From Memory / Random Field Measurement
RFP : Request For Proposals
RFS : Remote File System / Règles Fondamentales de Sûreté / Rural Fire Service
RFT : Request for Technology
RGAA : Référentiel Général d'Accessibilité des Administrations
RGB : Red Green Blue
RGF : Réseau Géodésique Français
RGPD : Régime Général de Protection des Données
RGS : Référentiel général de sécurité / Remote Graphics Software
RHCP : Right Hand Circular Polarization
RHEL : Red Hat Enterprise Linux
RIA : Rich internet application / Radio Immuno Assay
RIAA : Recording Industry Association of America
RIB : RenderMan Interface Bytestream / Routing Information Base / Relevé d'identité bancaire
RIC : Reconnaissance Intelligente de Caractères
RICC : Remote Interface Control Card
RID : Real-time Inter-network Defense (rfc 6545)
RIE : Receiver Interrupt Enable
RIF : Routing Information Field
RIFF : Raster Image File Format / Resource Interchange File Format
RIM : "Research In Motion"™ / Records and Information Management
RIMS : Risk Information Management System
RINA : Recursive Inter Network Architecture
RIOT : Radical Image Optimization Tool
RIP : Raster Image Processing / Routing Information Protocol / Regulation of Investigatory Powers act (UK) / Réseaux d'Initiative Publique / Replaceable Ink Packs
RIPA : Regulation of Investigatory Powers Act (uk)
RIPE : Réseaux IP Européens
RIPL : Remote Initial Program Load
RIR : Regional Internet Registry
RIS : Remote installation server
RISC : Reduced Instruction Set Computer / Relais d'information sur les sciences de la cognition / Repository for Individuals of Special Concern
RISK : Risk Intelligence Symposium & Knowledge
RISS : Reference Information Storage System
RITA : The Reliable Internetwork Troubleshooting Agent (rfc 2321)
RJE : Remote Job Entry
RLAN : Radio Local Area Network
RLC : Radio Link Control
RLE : Run-Length Encoding / Run Length Encoded Bitmap / Right-to-Left Embedding
RLL : Run Length Limited / Radio in the Local Loop
RLO : Right-to-Left Override
RLW : Regie der LuchtWegen
RMA : Return Material Authorization / Risk Management Agency
RMI : Remote Method Invocation (Java) / Risk Management and Insurance / Radio Magnetic Indicator / Revenu Minimum d'Insertion
RMM : Risk Management Measures
RMP : Resource Module Platform / Risk Management Program
RMS : Root Mean Square / Resource Management System / Record Mangmnt Services / Remote Monitoring(Manipulator) System / Rep Montage System / (Windows) Rights Management System / Richard Matthew Stallman (GNU project) / Royal Meteorological Society
RMVB : RealMedia Variable Bitrate
RNA : Remote Network Access / Réseau national d'alerte / Raccordement numérique asymétrique (ADSL)
RNC : Radio Network Controller
RNDC : Remote Name Daemon Control
RNG : Random Number Generator
RNIC : RDMA-enabled Network Interface Controller
RNIS : Réseau Numérique à Intégration de Services
RNOC : Remote/Regional Network Operation Center
RNR : Receiver Not Ready
RNS : Radio Network Subsystem
ROA : Remote Object Access / Route Origin Authorization (rfc 6482-3)
ROBO : Remote Office, Branch Office
ROC : Remote Operation Center / Receiver Operating Characteristics
ROCA : Return of Coppersmith’s Attack (CVE-2017-15361)
ROHC : RObust Header Compression (rfc 6846)
ROLL : Routing Over Low power and Lossy networks (WG)
ROM : Read Only Memory / Regional Oxidant Model
ROP : Remote optical platform / Return-oriented programming / Raster operations pipeline
ROPO : Research Online, Purchase Offline
ROS : Remote Operation Services / Read Only Storage / Router Operating System / Revenue On-line Service
ROSE : Remote Operations Service Element / (Apple) Real-time Operating System Environment
ROV : Remotely Operated Vehicle
RPA : Remote Page Accelerator / Remote PassPhrase Authentication
RPC : Remote Procedure Call (rfc 5531) / Region Protecion Code / Risc PC
RPD : Recurrent Pattern Detection / Reverse Phone Directory / Relative Percent Difference
RPE : Regular Pulse Excitation (voice coding)
RPF : Reverse Path Forwading (Multicast)
RPG : Report Program Generator / Rotary Pulse Generator / Role-playing games / Rocket Propelled Grenade
RPH : Resource Priority Header
RPHB : Regional Processor Handler Bus
RPKI : Resource Public Key Infrastructure (rfc 4593, 6490-1, 6907)
RPL : Remote Program Load / Routing Protocol for Low-Power and Lossy Networks (rfc 6554; see LLN)
RPM : RedHat Package Manager / Revolutions Per Minute / Radio power management / Reverse Path Multicasting
RPO : Recovery Point Objective
RPOA : Recognised Private Operating Agent
RPR : Resilient Packet Ring (IEEE 802.17)
RPS : Rights Protection System
RPSL : Routing Policy Specification Language (rfc 2280)
RPTC : Réseau Public Téléphonique Commuté
RPV : Réseau Privé Virtuel (=VPN)
RRAS : Routing and Remote Access Services
RRC : Radio Resource Control
RRD : Removable Rigid Disk / Radio Reflection Detection
RRDS : Relative Record Data Set
RRS : Reconfigurable Radio Systems
RSA : Rivest Shamir & Adelman (cryptography) / Radio Spectrum Agency (UK) / Range Standardization and Automation / Royal Signals Association (uk)
RSAC : Recreational Software Advisory Council
RSB : Rechargeable storage battery
RSC : Remote Services Center / Radio Spectrum Committee
RSd : Route Server daemon
RSG : Random Sentence Genarator
rsh : Remote Shell
RSI : Ring State Indicator / Repetitive Strain Injury / Remotely Sensed Imagery / (Research Systems Inc)
RSMA : Reverse SubMiniature version A connector
RSN : Real Soon Now
RSO : Remote Spool Output
RSP : Reliable Secure Profile / Registration Service Provider
RSPP : Radio spectrum policy programme
RSRB : Remote Source Route Bridging
RSS : Realy Simpe Syndication / Rich Site Summary / RDF Site Summary / Resident set size (UNIX ps)
RSSI : Received Signal Strength Indication / Responsables Sécurité des Systèmes d'Information / Russian Space Science Internet
RST : Readability, Signal, Tone
RSTP : Rapid Spanning Tree Protocol
RSUB : Reliable Service Update Protocol (Novell)
RSVP : Resource ReSerVation Protocol
RTAS : Real-Time Audio Suite
RTB : Remote Token ring Bridge / Real Time Bidding
RTBF : Radio Télévision Belge Francophone / Right to Be Forgotten
RTC : Real-Time Communication / Real Time Clock / Réseau Téléphonique Commuté
RTCA : Radio Technical Commission for Aeronautics
RTCM : Radio Technical Commission for Maritime Services
RTCP : Real-Time Control Protocol (multicasting / rfc 1889, 5968)
RTD : Real-Time Display/Data/Detection / Resistance Temperature Detector / Research and technological development
RTE : RunTime Engine
RTF : Rich Text Format
RTFM : Realtime Traffic Flow Measurement (rfc 2721) / Read The F... Manual
RTI : Real-Time Inteface
RTK : Real Time Kinematic
RTL : Right-to-left (text or table) / Run Time Library
RTM : Response Time Monitor / Read the Manual / Release to manufacturing
RTMP : Routing Table Maintenance Protocol
RTN : Random Telegraph Noise / Raytheon Company (stock symbol)
RTO : Recovery Time Objective / Retransmission timeout
RTOS : RealTime Operating System
RTP : Real-time Transport Protocol (multicasting - rfc 1889, 5968) / Routing Table Protocol (VINES) / Rapid Transport Protocol (HRP/IBM)
RTR : RARE Technical Report
RTS : Request To Send (RS232:4 ; ASCII X'1E') / Real Time Systems / Regulatory Technical Standards / Random Telegraph Signal
RTSJ : Real-Time Specification for Java
RTSP : Real Time Streaming Protocol (rfc 2326)
RTT : Round Trip Time
RTTM : Round Trip Time Measurement
RTU : Real Time Unix / Ready to Use / Road to Ubuntu
RTVR : Real Time Virus Reporting (BitDefender™)
RTXP : Ripple Transaction Protocol
RUDP : Reliable UDP (rfc 908, 1151)
RUI : Remote User Interface
RUID : Real User ID
RUP : Rational Unified Process / Reliable UDP Protocol
RUTH : Remote User Technical Help
RVA : Regie des Voies Aeriennes / Rijksdienst voor Arbeidsvoorziening / Réseau à Valeur Ajoutée
RVB : Resonating Valence Bond
RVG : Root Volume Group
RWAP : Random Walk based Anonymous Protocol
RWD : Responsive Web Design
RYSA : Responsible Young Security Agents
(Retour au début)

SAA : Systems Applications Architecture (IBM) / Single Access Antenna / Stateless Address Autoconfiguration (rfc1971)
SAAL : Signaling ATM Adaptation Layer (ATM)
SaaS : Software as a Service
SAASM : Selective Availability /Anti-Spoofing Module
SAC : Single Attachment Concentrator (FDDI)
SACK : Selective Acknowledgment
SACM : Security Automation and Continuous Monitoring (rfc 8248)
SACS : South Atlantic Cable System
SAD : Security Association Database
SADT : Structured Analysis and Design Technic
SAE : Silo Alarm Enable / South American Explorers / System Architecture Evolution / Systèmes d’Archivage Electronique
SAF : Satellite Application Facility
SAG : SQL Access Group / Symantec Antivirus Gateway
SAGE : Security Algorithms Group of Experts
SAK : Secure Attention Key
SAM : Sequential Access Method / System Administration Manager / Security Accounts Manager / Symantec Antivirus for Macintosh / Société d'Admiration Mutuelle / Surface to Air Missile / Simple Anonymous Messaging / Subsequent Address Message/ Security Access control and Monitoring system / Software Asset Management / Scalable Adaptive Multicast
SAML : Security Assertion Markup Language
SAN : Storage Area Network / Standard Address Number
SANA : Space Assigned Numbers Authority
SANE : Standard Apple Numerics Environment
SANS : Sysadmin, Audit, Network Security Institute / Small angle neutron scattering
SANZ : Standards Association of New Zealand
SAP : Service Access Point / Serving Attachment Point (RFC 5836) / Service Advertising Protocol (Novell) / SIM Access Profile / Session Announcement Protocol / Systems, Application and Products / Système d'alerte précoce / Special Access Program
SAPI : Service Access Point Identifier (LAPD)
SAQ : Seldom Asked Questions
SAR : Stack Address Register / Segmentation and Reassembly (ATM) / Suspicious Activity Report / Search and Rescue / Synthetic Aperture Radar / Specific Absorption Rate / Safety Analysis Report
SARA : Security Auditor's Research Assistant / Symantec Antivirus Research Automation
SARC : Symantec Antivirus Research Center
SARM : Set Asynchronous Response Mode (HDLC)
SARP : Scalable Address Resolution Protocol (rfc 7586)
SAS : Single Attachment Station / Serial Attached SCSI / Statistical Analysis System / Security Assessment Sharing / Security Analyst Summit
SASI : Shugart Associates Systems Interface (forerunner of SCSI) / Semi-supervised Algorithm for Sarcasm Identification
SASL : Simple Authentication and Security Layer (rfc 2444, 6595)
SAT : SIM Application ToolKit / Static Air Temperature / SpecifiekEnergieabsorptieTempo
SATA : Serial ATA (Advanced Technology Attachment)
SATAN : System Administrator Tool for Analyzing Networks
SAVA : Source Address Validation Architecture
SAVI : Source Address Validation Improvement (rfc 6959, 7039, 8074)
SAW : Surface Acoustic Wave
SAX : Simple API for XML
SBAS : Satellite Based Augmentation System (GPS extension)
SBC : Single Board Computer / Standards of Business Conduct / Session border controller / Server Based Computing
SBCS : Single-Byte Character Set
SBL : Spamhaus Block List / Short Base Line
SBR : Styrene Butadiene Rubber / Space-based Radar
SBRS : SenderBase Reputation Score
SBS : Special Broadcasting Service / Side-by-Side
SBSS : Surveillance and Broadcast Services Subsystem
SCA : Single Connector Architecture / Speed Catalog Access / Subsidiary Carrier Authorization (now known as SCS) / Stored Communications Act
SCAN : Standard Cryptographic Algorithm Naming
SCAP : Security Content Automation Protocol / Security Certification and Authorization Package
SCB : Spool Control Block / System Control Block / Support and Connection Board
SCBL : SpamCop Blocking List
SCC : Serial Communication Controller / Single Component Computer
SCCH : Shared Control CHannel
SCCM : System Center Configuration Manager (Microsoft)
SCCP : Skinny Client Control Protocol (Cisco™)
SCEP : Simple Certificate Enrollment Protocol
SCF : Service Control Function / Supressed Carrier Frequency
SCI : Scalable Coherent Interface / Sensitive Compartmented Information / Serial communications interface
SCL : System Command Language
SCM : Source code management / Supply Chain Management / Secure Content Management / Software Configuration Management
SCMS : Smart card management system / Serial Copy Management System
SCOM : System Center Operations Manager (Microsoft)
SCP : Session Control Protocol / Stored Configuration Profile / Secondary Communications Processor / Secure Copy Protocol / Service control point / Smart Card Platform
SCPC : Single Channel Per Carrier
SCPS : Space Communications Protocol Specification
SCR : Secure Card Reader (BULL) / Sustainable Cell Rate / Summary Care Record / Silicon Controlled Rectifier / Screensaver (filename extension) /Script (filename extension)
SCRS : Système canadien de référence spatiale
SCS : Subsidiary Carrier Service / Satellite Communications System / Single Channel Simplex / Special Collection Service
SCSI : Small Computer Standard Interface / Switching Capability Specific Information (rfc 8258)
SCSP : Server Cache Synchronization Protocol (rfc 2334)
SCST : SCSI target
SCSU : Standard Compression Scheme for Unicode
SCSV : Signaling Cipher Suite Value (rfc 5246 + IETF draft) / Semicolor-Separated Value
SCTP : Stream Control Transmission Protocol (rfc 4960)
SCUP : System Center Updates Publisher
SCVP : Server-based Certificate Validation Protocol
SDA : SGML Document Access / SD card Association / Sélection directe à l'arrivée
SDAC : System Data Acquisition Concentrator
SDAP : Shared Device Access Protocol
SDAR : Secure Distributed Anonymous Routing (protocol)
SDC : Synchronous Data Compression
SDDC : Software defined data center
SDDI : Serial Digital Data Interface
SDE : Software Development Environment / Secure Data Exchange
SDF : System Dialog Facility / Standard Data Format / Service Data Function / Statistical Distribution Function / Spacial Data File
SDH : Synchronous Digital Hierarchy (optical transmission) / SONET D H / Secure Diffie-Hellman protocol
SDHC : Secure Digital High Capacity
SDI : Standard Disk Interconnect / Space Defence Initiative / Serial Digital Interface / Spatial Data Infrastructure / Single Document Interface (Microsoft)
SDIF : Sound Description Interchange Format
SDIO : Serial Data Input Output
SDK : Software Development (tool)Kit
SDL : Simple DirectMedia Layer / Security Development Lifecycle / Self-directed learning
SDLC : Synchronous Data Link Control / Software Development Life Cycle
SDM : System Development Methodology / System Definition Model
SDMI : Secure Digital Music Initiative
SDMS : Scientific Data Management System
SDMX : Statistical Data and Metadata eXchange
SDN : Software Defined Network / (Cisco) Self-Defending Networks
SDNV : Self-Delimiting Numeric Value (rfc 5050)
SDO : Service Data Objects / Solar Dynamics Observatory
SDP : Session Description Protocol (rfc 2327, 5888) / Simple Device Protocol / Screen Definition Processor / Syndrome Decoding Problem
SDR : Software Defined Radio / Single Data Rate
SDS : Satellite Data Service / Software defined storage
SDSL : Symmetric Digital Subscriber Line
SDSU : SMDS Data Service Unit
SDT : Service description table
SDTV : Standard Definition Television
SDU : Service Data Unit / Satellite Data Unit
SDV : Simultaneous Data Voice facility
SDVR : Standalone Digital Video Recorder
SDX : Storage Data acceleration
SDXC : Secure Digital eXtended Capacity
SDXF : Structured Data Exchange Format (rfc 3072)
SEA : Self Extracting Archive / Search Engine Advertising
SEAL : Software-Optimized Encryption Algorithm / Sea, Air, Land (US special forces)
SEB : Seat Electronic Box
SEC : Securitiies and Exchange Commission
SECT : Sexuality Educators, Counselors and Teachers
SED : Self-encrypting drive / Surface-conduction Electron-emitter Display
SEE : Single Event Effect / Software Engineering Environment
SEEK : Secure Electronic Exchange of Keys
SEID : Secure element ID (nfc)
SELM : Security Event Log Monitor
SEM : Standard Error on the Mean / Security event manager / Space Environment Monitor / Scanning electron microscope / SPAMfighter Exchange Module / Search engine marketing / Secure Execution Mode / Sealed Expansion Module
SEMA : Security Event Management & Auditing
SEMS : Symantec Encryption Management Systems
SEND : SEcure Neighbor Discovery
SEO : Search Engine Optimization
SEP : Symantec Endpoint Protection
SEPA : Single Euro Payments Area
SERP : Search Engine Results Page
SES : Ship Earth Station / Satellite Earth Stations and Systems / Société Européenne des Satellites
SET : Secure Electronic Transaction / Social Engineer Toolkit / Security Event Token (rfc 8417)
SETI : Search for Extraterrestrial Intelligence
SFC : Service Function Chaining (rfc 7665)
SFDM : Spatial Frequency Division Multiplexing
SFH : Slow Frequency Hopping
SFL : System Function Language
SFM : Simple File Manager
SFN : Single Frequency Network
SFP : Small Form Pluggable
SFPD : Secure Flight Passenger Data
SFPS : Secure Fast Packet Switching
SFS : Secure Fast Switching (® Cabletron)
SFT : System Fault Tolerant / Store and Forward Technique
SFTP : Shielded Foil Twisted Pair / Secure FTP
SFV : Simple file verification (filename extension)
SFX : Self-extracting archive
SGBD: Système de Gestion de Bases de Données (DBMS)
SGC : Server Gated Cryptography / Système de Gestion de Contenu (=CMS)
SGML : Standard Generalized Markup Language
SGMP : Simple Gateway Management Protocol
SGS : Symantec Gateway Security
SGSI : Système de gestion de la sécurité de l'information
SGSN : Serving GPRS Service Node
SHA : Secure Hash Algorithm
SHP : Safe Harbor Principles / Shapefile (GIS - filename extension)
SHR : Super High Resolution
SHS : Secure Hash Standard
SIA : Scientific Instruction Assist / System Interfaces for Applications / Semiconductor Industry Association
SIAP : Safer Inetrnet Action Plan
SIC : Serial Interface Card / Standard Industrial Classification / Segmented Integer Counter
SID : Security Identifier / Software Initiative Deutschland
SIDA : SystemInstallation Durch die Anwender (Siemens) / Swedish International Development Cooperation Agency
SIDH : Supersingular Isogeny Diffie-Hellman
SIDN : Stichting Internet Domeinregistratie Nederland
SIEM : Security Information and Event Management
SIF : Standard interchange Format
SIFO : Serial In - Parallel Out
SIFS : Short Inter Frame Spacing
SIFT : Simplified Inverse Filtering / SANS Investigative Forensic Toolkit
SIG : Special Interest Group
SIIA : Software & Information Industry Association
SIIT : Stateless IP/ICMP Translation Algorithm (IPv6 - rfc 6145)
SIL : Standard Interface Link / Service Information Letter
SiLK : System for Internet-Level Knowledge (CERT NetSA Security Suite) / Skype Codec
SIM : Single Ion Monitoring / Semantic Information Manager / Subscriber Identifier Module / Server Information Module / Securized Identity Management / (NASA) Space Interferometry Mission
SIMA : Synchronous Intelligent Modem Adapter (Bausch)
SIMD : Single Instruction Multiple Data (Intel)
SIMM : Single In-line Memory Module
SIN : Secure IP Network
SIO : Serial Input/Output / S=Strength, I=Interference, O=Overall / Security Intelligence Operations (TRAC, Cisco)
SIP : SMDS Interface Protocol / Session Initiation Protocol (RFC 3265) / Secure Internet Programming / System Integrity Protection / (Unicode) Supplementary Ideographic Plane
SIPC : Simple Interactive PC
SIPN : Secure IP Network
SIPP : Simple IP Plus (rfc 1770) / Single Inline Pin Package
SIPR : Secret Internet Protocol Router
SIPS : Secure Internet Payment Services / Simple Internet Publishing System
SIR : System Installation and Restore / Sustained Information Rate / Security Intelligence Report
SIRH : Système d'information de gestion des ressources humaines
SIS : (New Zealand's) Security Intelligence Service / Système d'Information Schengen / Système d'Information Sociale
SISO : Single Intput Single Output
SIT : Satellite Interactive Terminal / Silicon Intensifier Target / Sterile Insect Technique / (StuffIt filename extension)
SITA : Société Internationale de Télécommunications Aéronautiques
SITE : Search for International Terrorist Entities
SIU : Scientific Instruction Unit
SIV : Synthetic Initialization Vector (rfc 5297)
SJF : Shortest Job First
SJP : Shortest Job with Priority
SKEL : Secure Kernel Extension Loading
SKI : Subject Key Identifier
SKIP : Simple Key-Management for Internet Protocol
SKU : Stock keeping unit
SLA : Serial Link Adapter / Service Level Agreement / Subnet Local Aggregator / Site-Level Aggregator / Special Libraries Association
SLAP : Switch Link Authentication Protocol
SLAR : Side Looking Airborne Radar
SLC : Slave Link Controller / Scan Line Corrector / Single-Level Cell (SSD)
SLD : Second-Level Domain
SLI : Suppress Length Indicator
SLID : Subscriber Line IDentifier
SLIP : Serial Line Internet Protocol (rfc 1055)
SLIS : Serveur de communication Linux pour l'Internet Scolaire
SLM : Service Level Management / Shared Library Manager
SLP : Service Location Protocol (RFC 2608) / Single Link Procedure / Sea Level Pressure / Spoken Language Processing / Site License Program
slpd : Service Location Protocol Daemon (rfc 2165, 2608)
SLR : Scalable Linear Recording / Service Level Requirement / Single lens reflex / Satellite Laser Ranging
SLV : System-Level Vectoring
SMA : Systems Management Architecture (IBM) / Security Management Appliance / SubMiniature version A (connector)
SMAC : Sane's Monthly Algorithms Challenge / Simple Media Access Control Protocol
SMAD : Services de médias audiovisuels à la demande
SMAF : Service Management Access Function
SMAP : Supervisor Mode Access Prevention
SMART : Self-Monitoring Analysis and Reporting Technology / Specific, Measurable, Achievable, Realistic and Timebound
SMB : Server Message Block (devenu CIFS) / Small/Medium Business
SMC : Sheet Molding Compound / System Management Controller
SMC-R : Shared Memory Communications over RDMA (rfc 7609)
SMD : Surface Mounted Device / Storage Module Device / Samsung Mobile Display
SMDI : SCSI Musical Data Interchange / Simplified Message Desk Interface
SMDS : Switched Multimegabit Data-Service
SME : Small and Medium Enterprises / Subject Matter Expert
SMEP : Supervisor Mode Execution Protection
SMF : Service Management Function / Simplified Multicast Forwarding
SMI : Structure of Management Infomation (rfc 1155, 1442) / System Monitoring Interface / Self Mounting Image / System Management Interrupt
SMIL : Synchronized Multimedia Integration Language
SMIS : Secured and Mobile Information Systems
SMIT : System Management Interface Tool
SMM : Synchronization & Maintenance Module / System Management Mode
SMO : Social media optimization
SMP : Symmetric MultiProcessing / significant market power / (Unicode) Supplementary Multilingual Plane
SMPP : Short Message Peer to Peer
SMPS : Switched-mode power supply
SMS : Satellite Multiservice System / System Management Server (Microsoft™) / Safety Management System / Short Message Service (GSM) / Subscriber Management System / (Bellcore) Service Management System / Supervisor Monitor Scheduler / Semiconductor Manufacturing Services / Symantec Mail Security
SMSC : Short Messaging Service Center
SMSI : Système de Management de La Sécurité de l'Information (ISMS)
SMT : Surface Mounted Technology / Statistical machine translation
SMTP : Simple Mail Transfer Protocol (rfc 821, 1869, 5321)
SMW4 : SEA-ME-WE 4 = South East Asia-Middle East-Western Europe 4 (cable)
SMXE : Safer Mode Extensions Enable
SNA : Systems Network Architecture
SNAC : Systems and Network Attack Center
SNAF : SubNetwork Access Function
SNAP : Sub-Network Access Protocol / Satellite Navigation and Positioning Group
SNI : Service & Network Interworking (SMDS) / SNA Network Interconnection
SNIA : Storage Networking Industry Association
SNIP : Service national d'intelligence et de prevention (Zaïre) / Source Normalized Impact per Paper
SNMP : Simple Network Management Protocol (rfc 1643, 2262, 2272)
SNPP : Simple Network Paging Protocol
SNQP : Simple Nomenclator Query Protocol (rfc 2259)
SNR : Signal-to-Noise Ratio
SNRC : Service Node Routing Complexes
SNS : Screen Name Service / Symantec Network Security / Social Network Service
SOA : Start of Authority / Speed of advance / Service Oriented Architecture / Semiconductor Optical Amplifier / Safe operating area
SOAP : Simple Object Access Protocol / SIM Over the Air Programming / Symbolic Optimal Assembly Program (IBM 650)
SOC : Security Operation Center / Summary of Comments / System-on-a-chip
SOE : Small Office Environment / Special Operations Executive
SOF : Start Options File
SOG : Speed Over Ground
SOH : Start Of Header (ASCII 01)
SOHO : Small Office, Home Office / Solar and Heliospheric Observatory / Stacks Overflows and Heap Overflows
SOI : Silicon on Insulator / Source of Information
SOIC : Small Outline Integrated Circuit
SOM : Start of Message / System Object Model (IBM) / Self-organizing map
SONet : Synchronous Optical Network
SOP : Standard Operating Procedure / Small-Outline Package / Same Origin Policy / Start of Packet
SOPA : Stop Online Piracy Act
SORBS : Spam and Open-Relay Blocking System
SORM : Scala ORM / (Russian) Система Оперативно-Розыскных Мероприятий (System for Operative Investigative Activities)
SOS : Start of Significance / Supply Operations Service / SOmalian Shilling
SOUP : Simple Offline USENET (User's Network) Packet Format
SOX : Schema for Object-Oriented XML / Soud eXchange / Sarbanes-Oxley Act (2002 public company accounting reform)
SPA : Software Publishers Association / Secure Password Authentication
SPAD : Système Portable pour l'Analyse des Données
SPAG : Standards Promotion and Application Group (ISO)
SPAM : Spiced Pork and Meat (see RFC 2635)
SPAN : Smart Phone Ad hoc Network
SPAP : Shiva Password Authentication Protocol
SPAR : Système de Préservation et d'Archivage Réparti
SPARC : Scalable Processor Architecture / The Scholarly Publishing and Academic Resources Coalition
SPC : State Plane Coordinates
SPD : Shareable Private Disk / Security Policy Database / Serial Presence Detect / Secure Pocket Drive
S/PDIF : Sony/Philips Digital Interface (IEC-958 type II)
SPDY : Speedy (networking protocol) (Google ™)
SPE : Software Production Environment / Synchronous Payload Envelope (SONET) / Solid-Phase Extraction
SPEC : Standard Performance Evaluation Corporation
SPEM : Software Process Engineering Metamodel
SPEW : Spam Prevention Early Warning system
SPF : Sender Policy Framework (RFC 4408, 6652) / Sender Permitted From / Shortest Path First
SPI : Security Parameter Index / Stateful Packet Inspection / Safeguard against Privacy Invasions / Serial Peripheral Interface
SPIB : Serial Peripheral Interface Bus
SPIP : Système de Publication pour l'Internet (www.uzine.net)
SPIT : Spam via Internet Telephony
SPOC : Single Point of Contact
SPOF : Single Point of Failure
SPOT : Shared Product Object Tree (IBM AIX) / Systeme Probatoire pour l'Observation de la Terre
SPP : Sequenced Packet Protocol
SPS : Standby Power Supply / Standard Positioning Service / Symantec Protection Suite
SPSS : Science Planning and Scheduling System / Statistical Package for Social Sciences
SPT : Shortest Path Tree
SPU : Signal Processing Unit
SPV : Son Photo Video
SPX : Sequenced Packet eXchange / Secure PDF eXchange (Sophos)
SQA : Software Quality Assurance
SQC : Statistical Quality Control
SQD : Signal Quality Detector
SQE : Signal Quality Error
SQL : Structured Query Language
SQM : Service Quality Monitor / Software Quality Management
SRA : Shared Resource Architecture / Scanning radar altimeter / Service Request Authorization
SRAM : Static Random Access Memory
SRB : Source-route bridging
SRC : System Resource Control
SRD : Step Recovery Diode / SuperRadiant Diode / Seldom Reaches Destination / Soon Runs Dry
SRE : Standard for Robot Exclusion / Software Reliability Evaluation / Software Reverse Engineering / Search Radar Equipment
SRF : Specialized Resource Function
SRI : Subresource Integrity
SRM : Storage Resource Management / Shared Resource Management / Standard Reference Materials
SRO : Sharable and Read Only
SRP : Suggested Retail Price / Source Routing Protocol / Secure Remote Password / Spatial Reuse Protocol / Software Restriction Policy
SRS : SNMP Remote Support / Sequence Retrieval System / Sunrise Skip / Source Routing System (IBM) / Services de réseautage social
SRT : Source Route Transport / Source-route transparent / Short Range Telemetry
SRTB : Source Routing Transparent Bridge
SRTM : Shuttle Radar Topography Mission
SRTP : Secure Real-time Transport Protocol (rfc 3711)
SRTT : Smoothed Round Trip Time
SRV : Service record (rfc 2782, 6335)
SSA : System Support Addendum / Software security assurance / Solid State Amplifier / Serial Storage Architecture / Static Single Assignement form / Space Situational Awareness
SSAC : Security and Stability Advisory Committee
SSAE : Statement on Standards for Attestation Engagements
SSAP : Source Service Access Point
SSB : Single Side Band (modulation) / Space Studies Board
SSC : Symantec System Center
SSCC : Serial Shipping Container Code
SSCP : System Services Control Point
SSCS : Service Specific Convergence Sublayer (ATM)
SSD : Solid State Disk / Surveillance Self-Defense
SSDP : Simple Service Discovery Protocol/Platform
SSDT : System Service Descriptor Table
SSE : Streaming SIMD Extensions / Searchable Symmetric Encryption
SSF : Service Switching Function
SSG : Service Selection Gateway
SSH : Sea Surface Height / Secure Shell
SSHD : Solid state hybrid drive
SSI : Solid State Imaging / Server Side Include
SSID : Service Set Identification (IEEE 802.11) / Secure Set Identifier (32-character)
SSK : Signed Subspace Key
SSL : Secure Sockets Layer / SecurSight event Logging
SSM : Single Segment Message / Security Services Module / Source-Specific Multicast
SSN : Social Security Number
SSO : Single Sign-On / Surveillance Systems Operator / Specal Source Operations
SSP : Service Switching Point / Storage Service Provider / (Unicode) Supplementary Special-purpose Plane / Security Support Provider / Server-side polymorphism / Stream-based Style Sheet Proposal / SubSystem Prohibited / Supply side plateform / Synchronous Serial Peripheral
SSPI : Security Support Provider Interface
SSPS : Solid State Protection System
SSR : Stealth Signal Recovery / Satellite System Receiver / Secondary Surveillance Radar
SSRC : Synchronization Source identifier (RTP header)
SST : Service Support Team / Spanning Tree Protocol / Surface Sea Temperature / Shiva Smart Tunnelling / Spread-Spectrum Technology
SSTC : Security Services Technical Committee (OASIS)
SSTP : Secure Socket Tunneling Protocol (Shared Spanning Tree Protocol - Cisco)
SSTV : Slow-Scan Television
SSU : Secure Semireliable UDP
STAG : Security Techniques Advisory Group
STAR : Solenoid Telescope for Astrophysical Research / Security Technology and Assurance Registry
STB : set-top box
STD : Subscriber Trunk Dialing / salinity, temperature and depth
STDM : Statistical Time Division Multiplex
STDN : Space Flight Tracking and Data Network
STE : Secure Terminal Equipment
STEM : Science, Technology, Engineering and Mathematics
STEP : Simple IPv6-in-IPv4 Tunnel Establishment Procedure / Solar Terrestrial Energy Programme
STF : Special Task Forces
STFW : Search The Fucking Web
STI : SANS Technology Institute
STIC : Sciences et Technologies de l'Information et de la Communication / Système de traitement des infractions constatées
STIP : Secure Telecommunications Implementation Plan
STK : SIM Application Toolkit
STL : Standard Template Library / STereoLithography (file format)
STM : Scanning Tunneling Microscope / Synchronous Transfer Mode / Security Threat Managemen
STML : Skunk Template Markup Language
STN : Stored Telephone Number
STO : Security through obscurity
STOC : Signaling Terminal Open Communication
STP : Shielded Twisted Pair / Spanning Tree Protocol / Software through Pictures / Straight Thru Processing / Science and Technology Policy
STS : Station to Station (protocol) / Synchronization TimeStamp / Strict Transport Security (HSTS) / (NIST) Statistical Test Suite
STT : Speech-to-text
STU : Secure Telephone Unit
STUN : Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs). (RFC 3489, 5389)
STX : Start of TeXt (ASCII 02)
SUID : Set User ID (Unix)
SUPA : Smart Universal Power Antenna
SUS : Software Update Services (Microsoft) / Single UNIX Specification
SUT : System Under Test
SUU : Signalling User to User
SVC : SuperVisor Call / Switched Virtual Circuit
SVCD : Super Video CD
SVD : Simultaneous Voice and Data
SVEC : Synchronization VECtor (rfc 6007)
SVG : Scalable Vector Graphics (W3C) / Silicon Valley Group, Inc
SVGA : Super VGA
SVID : (Unix) System V Interface Definition
SVL : Standard Volume Label
SVM : Support Vector Machine / Security Value Map
SVN : Subversion (system) / Secure Virtual Network
SVOD : Subscription Video on Demand / Stacked Volumetric Optical Disk
SVOPC : Sinusoidal Voice Over Packet Coder
SVP : Shortest Vector Problem
SWE : SpringPort Wireless Ethernet module
SWF : ShockWave Flash (filename extension) / Small Web Format
SWOT : Strengths, Weaknesses, Opportunities, Threats
SWR : Standing Wave Ratio
SWS : Symantec Web Security
SWT : Standard Widget Toolkit (windowing ToolKit for Java)
(Retour au début)

TAB : Tape Automated Bonding
TAC : Terminal Access Controller / Technical Assistance Center / Traffic Acquisition Costs
TACD : Telephone Area Code Directory
TACO : Three-dimensional Adaptive Camera with Object detection and foveation
TACS : Total Access Communication System (cel phone)
TAD : Technical Audio Device
TADS : Text Adventure Development System / Target Acquisition & Designation System
TAF : Terminal Access Facility / Terminal Aerodrome Forecast
TAI : Temps Atomique International
Tails : The Amnesic Incognito Live System
TALN : Traitement automatique du langage naturel (MARF)
TAMP : Trust Anchor Management Protocol (rfc5934)
TAN : Tiny Area Network / Transaction Authorisation Number
TAO : Track at Once / Tailored Access Operations (NSA) / The ACE ORB
TAP : Test Access Port / Trusted Analytics Platform
TARGA : Truevision Advanced Raster Graphics Adapter
TAS : Timeline Analysis System / True Air Speed
TATB : TriAmino-TrinitroBenzene
TAU : Trunk Access Unit
TAZ : Temporary Autonomous Zone
TBB : Tor Browser Bundle
TBD : To be defined/determined
TBGA : Tape Ball Grid Array
TBL : Tim Berners-Lee / Transmission balise-locomotive
TCAM : Ternary Content Addressable Memory (Cisco)
TCAP : Transaction capability applications part (GSM)
TCAS : Traffic alert and Collision Avoidance System
TCAU : Thin Coax Access Unit
TCB : Task Control Block / Trusted Computing Base
TCF : Two Controller Feature
TCFS : Transparent Cryptographic File System
TCG : Trusted Computing Group consortium (formerly TCPA)
TCL : Think C Libraries / Tool Command Language
TCM : Treillis Code Modulation / Time Compression Multiplexer / Trajectory Correction Maneuvers / Technical protection measures
TCMA : Tiered Contention Multiple Access
TCO : Total Cost of Ownership
TCP : Transfer Control Protocol (/ Internet Protocol) / Technical Cooperation Programme (WMetO)
TCPA : Trusted Computing Platform Alliance (now TCG) / Telephone Consumer Protection Act of 1991
TCPG : Think C Programming Guide
TCR : Transmitter Control Register / Token ring Copper Repeater / Tagged Cell Rate (ATM)
TCU : Trunk Coupling Unit / Transmission Control Unit
TCW : Translation Control Words
TDAB : Terrestrial Digital Audio Broadcasting
TDC : Time-to-Digital Converter
TDD : Time Division Duplex / Telecommunications Device for the Deaf / Test Driven Development
TDEA : Triple Data Encryption Algorithm
TDED : Trade Data Element Directory (ISO 7372 DIS)
TDI : Terminal Device Interface / Trusted DBMS Interpretation / Time Delayed Integration
TDJ : Transfer Delay Jitter (ATM)
TDLS : Tunneled Direct Link Setup
TDM : Time Division Multiplex
TDMA : Time division multiple access (IS-54 and IS-136 Interim Standards)
TDP : Thermal Design Power / Tag Distribution Protocol
TDR : Time Domain Reflectometry
TDS : Test and Diagnostic System / Time-Domain Spectroscopy
TEA : Tiny Encryption Algorithm
TEAM : Teachers and Educators using Apple Macintosh
TECS : The Enforcement Communications System (US DHS)
TED : Trust Extension Device / Technology, Entertainment, Design / Torrent Episode Downloader
TEDS : TETRA Enhanced Data Services
TEE : Trusted Execution Environments
TEF : Transverse Electron Focusing
TEH : Text Edit Handle
TEI : Text Encoding Initiative
TELL : Targeted Electronic Live Layer
TEM : Total Effectivity Measure
TER : Threat Exposure Rate
TERENA : Trans-European Research and Education Networking Association
TES : Transfer encoding syntax
TET : Terminal Entry Table
TETRa : Trans-European Trunked Radio
TFE : TetraFluorEthylene / Travail de Fin d'Etudes
TFO : Tandem Free Operation
TFT : Task File Table / Thin Film Transistor
TFTP : Trivial File Transfer Protocol (rfc 1350, 2349) / Terrorist Finance Tracking Program
TFTS : Terrestrial Flight Telecommunication System
TFU : Technical Follow Up
TGA : Truevision Graphics Adapter (filename extension: Truevision Targa format)
TGE : Tree Grammar Engine
TGS : Ticket Granting Service (Kerberos)
TGT : Ticket Granting Ticket (Kerberos) (rfc 4120)
TGU : Traffic generating unit
THD : Très Haut Débit / Total Harmonic Distortion
THL : Trans Hybrid Loss
THM : Total Harmonics Management
TIA : Telecommunications Industry Association / The Internet Adapter / Thanks In Advance / Total Informational Awareness (US dept of Defense)
TIAM : Terminal Interactive Access Method
TICE : Technologies de l'Information et de la Communication pour l'Enseignement
TIE : Transmitter Interrupt Enable
TIES : Telecom Information Exchange Services
TIFF : Tagged Image File Format
TIL : Technical Info Library
TIM : Test Interface Module / Tablette Internet Multimedia
TIMB : Tor Instant Messaging Bundle
TIME : Telecom, Information Technology, Media & Entertainment
TIN : Temporary Identification Number
TIP : Terminal Interface Processor / Transaction Internet Protocol (rfc 2371, 2372) / Translation Interoperability Protocol / Terrorist Interdiction Program
TIPS : Terrorist Information and Prevention System
TIS : Technical Information Sheet / Time Information System / The Information Society (journal)
TKIP : Temporal Key Integrity Protocol
TKS : Token Key Service
TLA : Three-letter Acronym / Top-Level Aggregation (rfc 2450)
TLB : Translation Look-aside Buffer
TLC : Triple Level Cell
TLD : Top Level Domain / Tag Library Descriptor / Thermoluminescent Dosimetry
TLI : Transport Layer Interface
TLM : Transmission Line Method / Technology lifecycle assessments
TLMS : Test Library Management System
TLS : Transport Layer Security (rfc 4346) / Transparent LAN Services / Tunable Laser Source
TLSA : "DANE TLSA" protocol (rfc 6698)
TLT : Task Location Table
TLV : Time, Length and Value (RFC 3359) / Threshold Limit Value
TMC : Traffic Message Channel
TMCH : Trademark Clearinghouse
TMDA : Tagged Message Delivery Agent
TMG : Threat Management Gateway / Trident Media Guard / Telegraaf Media Groep
TMN : Telecommunications Management Network
TMOS : Time Multiplexed Optical Shutter / TSAT Mission Operations System
TMS : Test Management System / Transaction Manager Server / Threat Management System / Token Management System / Translation Management System / Terminal Marine Stabilisé
TMSI : Temporary Mobile Subscriber Identity
TMU : Token ring Management Unit
TNC : Terminal Node Controller / Threaded Navy Connector
TNEF : Transport Neutral Encapsulation Format (Microsoft)
TNF : Tumor Necrosis Factor
TNI : Trusted Network Interpretation
TNO : Toegepast Natuurwetenschappelijk Onderzoek (Nederland)
TOA : Time Of Arrival
TOC : Table of Contents / Trouble Obsessionnel-Compulsif / Tactical Operations Center / Technology Operations Center
TODO : Talk Openly, Develop Openly (Group)
TOE : Target of Evaluation / Theory Of Everything
TOF : Tunable Optical Filter / Time of flight
TOFU : Trust on First Use
ToIP : Telephony over Internet Protocol
TOL : Time On-Line
TOLD : Trebor's Obnoxious Lunchmeat Detector
TOP : Technical and Office Protocols
TOTP : Time-based-One-Time-Password
Tor : Teleprinting Over Radio / The Onion Router
TOS : Terms of Service / Type of Service
TOSL : Trusted Open Source License
TP-PMD : Twisted Pair-Physical Medium Dependent
TPA : Third Party Application
TPAU : Twisted Pair Access Unit
TPB : The Pirate Bay / GROMACS Portable Binary (file extension)
TPC : Turbo Product Code
TPI : Transport Provider Interface
TPK : one-Time public key / Total Party Kill
TPL : Task Parallel Library / Towed Pinger Locator
TPM : Third Party Maintenance / TeleProcessing Monitor / Trusted Platform Module
TPN : The Peoples Network
TPP : TriPolyPhosphate
TPPO : Triphenylphosphine oxide
TPR : True positive rate
TPS : Télégraphie par le sol / Télévision par satellite / Terrestrial Positioning System
TPU : Text Processing Utility
TQC : Total Quality Control
TQM : Total Quality Management
TRAC : Threat Research Analysis and Communications (Cisco) / Trustworthy Repositories Audit & Certification
TRAM : Tools for Radio Access Management
TRI : Toxic Release Inventory
TRIPS : Trade Related Aspects of Intellectual Property Rights
TRM : Token Ring Module
TRNG : True Random Number Generator
TSA : Transportation Security Administration (US)
TSAG : Telecommunication Standardization Advisory Group
TSAP : Transport Service Access Point
TSAT : Transformational Satellite Communications System
TSB : Telecommunication Standardization Bureau
TSCH : Time-Slotted Channel Hopping (IEEE 802.15.4e, rfc 7554)
TSE : Terminal Server Edition (Windows NT)
TSF : Trusted Security Filter / TOE Security Functions
TSIG : Transaction Signature (RFC 1035) / Trusted Systems Interoperability Group
TSK : Transmission Security Key / (temporary) Secret Key
TSL : Teinte, Saturation, Luminosité (HSB)
TSM : Transaction/Session Management (rfc 2903) / Text Services Manager / (IBM) Tivoli Storage Manager / Telecoms Single Market
TSN : Tuple Sequence Number
TSO : Technical service organization / Time Sharing Option / TCP Segment Offload
TSOS : Time Sharing Operating System (Siemens)
TSP : Time Synchronization Protocol / Tunnel Setup Protocol
TSR : Terminate and Stay Resident
TSS : Telecommunications Standardization Sector
TST : Taiwan Standard Time
TTC : Telecommunication Technology Committee (Japan)
TTD : Temporary Text Delay
TTF : True Type Fonts / Time to Fix
TTFF : Time To First Fix
TTG : Time to Go
TTI : Time Transmission Interval
TTL : Transistor-Transistor Logic / Time To Live / Through The Lens
TTLS : Tunneled Transport Layer Security
TTP : Tester Per Pin / Trusted Third Party / Techniques, tactics and procedures
TTRT : Target Token Rotation Time
TTS : Transaction Tracking System / Text to Speech
TUBA : TCP/IP Using Bigger Address
TURN : Traversal Using Relays around NAT (rfc 5928, 6062)
TVD : Total Virus Defense (McAfee)
TVOL : TV On-Line
TWA : Time Weighted Average
TWG : Technical Working Group
TWR : Two-way ranging
TWT : Travelling Wave Tube
TXT : Trinh Xuan Thuang / Trusted Execution Technology
(Retour au début)

UAAG : User Agent Accessibility Guidelines
UAC : User Access Control / User Agent Client / Ultra Accessory Connector
UAF : Universal Authentication Framework protocol / User Authorization File
UAM : User Authentication Method
UAP : User Agent Profile / User Account Protection
UART : Universal Asynchronous Receiver/Transmitter
UAS : User Agent Server
UAWG : Universal ADSL Working Group
UBA : UmweltBundesAmt
UBE : Unsolicited Bulk Email
UBM : Unified Bandwidth Management
UBR : Unspecified Bit Rate
UCA : Under Colour Addition / Unicode Collation Algorithm
UCB : University of California at Berkeley, USA
UCD : Unicode Character Database
UCE : Unsolicited Commercial Email
UCP : User Contact Person
UCR : Under Colour Removal
UCS : Unicode Conversion Support / Universal Character Set / Unified computing system (Cisco)
UDA : Universal Data Access
UDB : (Italtel) Universal Data Base
UDDI : Universal Description, Discovery and Integration
UDF : Universal Disk Format
UDID : Unique Device Identifier
UDIF : Universal Disk Image Format / U Drop I Follow
UDLD : Unidirectional Link Detection (Cisco)
UDLR : Unidirectional Link Routing
UDMA : Ultra Direct Memory Access
UDMH : Unlimited Dynamic Memory Hack / Unsymmetrical dimethylhydrazine
UDO : Ultra Density Optical
UDP : Ugly Dirty Pig / User Datagram Protocol (rfc 768) / USENET Death Penalty / Unicast Discovery Protocol
UDR : User Destination Routing
UDRP : Uniform (Domain Name) Dispute Resolution Policy (ICANN)
UDS : Universal Database System
UEA : UMTS Encryption Algorithm
UEBA : User and Entity Behavioral Analytics
UEFI : Unified Extensible Firmware Interface
UERE : User equivalent range errors (GPS)
UFED : Universal Forensic Extraction Device
UFS : UNIX File System / Universal Flash Storage
UFSD : Universal File System Driver (Paragon)
UGC : User-generated content
uggc = http (ROT13)
UGLI : Using Gargantuanware to Layout Internet (documents) (IETF draft)
UHD : Ultra High Definition (reprography/television) / USRP Hardware Driver
UHS : Ultra High Site / Universal Hint System
UHV : Ultra High Vacuum
UIA : UMTS Integrity Algorithm
UIC : User Identification Code
UICC : Universal Integrated Circuit Card
UIDL : Unique IDentification Listing
UIL : User Interface Language
UIM : User Interface Manager
UIN : Universal internet number
UIPI : User Interface Privilege Isolation
UIQ : User Interface Quartz
UIT : Union Internationale des Télécommunications (ITU)
ULA : Unique Local Address (RFC 4193)
ULB : Underwater locator beacon
ULE : Ultra Lightweight Encapsulation
ULL : Unbundling Local Loop
ULP : Upper Layer Protocol
ULS : User Location Service (IAF) / Unweighted least squares
ULV : Ultra Low Voltage
UMA : User-Managed Access / User Management and Authentication / Unlicensed Mobile Access
UMB : Upper Memory Blocks
UMD : Universal Media Disk (Sony) / User Mode Driver
UME : Universal Messaging Engine
UML : Unified Modeling Language / User Mode Linux
UMPA : Usenet Macintosh Programming Awards
UMPC : Ultra mobile PC
UMS : Unified Messaging Service / USB mass storage
UMTP : UDP Multicast Tunneling Protocol
UMTS : Universal Mobile Telecommunications System
UNB : Utra Narrow Band
UNC : Universal Naming Convention
UNEP : United Nations Environment Programme
UNI : User Network Interface (ATM) / Ente Nazionale Italiano di Unificazione
UNII : Unlicensed National Information Infrastructure
UNIX : UNiversal Interactive eXecutive
UOF : Uniform Office Format
UPA : Uplink Packet Access / Uralic Phonetic Alphabet
UPBB : UPdate Bus Board
UPC : Universal Product Code / Usage Parameter Control (ATM)
UPIC : Unité Polyagogique Informatique du CEMAMu / Universal Payment Identification Code
UPnP : Universal Plug and Play (rfc 2616)
UPS : Uninterruptible Power Supply / UV Photoelectron Spectroscopy / Universal Polar Stereographic / United Parcel Service / Unix Print Services
UPT : Universal Personal Telecommunication
URAA : Uruguay Round Agreements Act
URC : Uniform Resource Characteristic
URI : Uniform Resource Identifier (rfc 2396, 3986)
URL : Uniform Resource Locator
URN : Uniform Resource Name
USaN : University Satellite Network
USAP : Ubizen Security Alliance Program
USB : Universal Serial Bus / Upper Side-Band / Universitäts- und Stadtbibliothek (Köln)
USCD : United States Commerce Department
USCG : United States Coast Guard
USE : User Security Enhancement (SWIFT)
USGS : United States Geological Service
USIC : United States Internet Council
USIM : Universal Subscriber Identity Module
USK : Updateable Subspace Key
USM : User-based Security Model (rfc 2274) / Universal Subscription Mechanism / Unified security management
USN : Update Sequence Number (Microsoft)
USNO : United States Naval Observatory
USP : United States Pharmacopeia
USRP : Universal Software Radio Peripheral
USSD : Unstructured supplementary service data
USSM : UICC Security Service Module
UST : Ultra Short Throw / Universal Standard Time
UTBB : Ultra-Thin Body and thin Buried oxide
UTC : Universal Time Co-ordinated
UTF : Unicode Transformation Format
UTM : Universal Transaction Monitor / Unified Threat Management / Universal Transverse Mercator / Urchin Traffic Monitor / Urchin Tracking Module / Unmanned Traffic Management
UTP : Unshielded Twisted Pair
UTRA : UMTS Terrestrial Radio Access (UTRAN: -Network)
UTS : Unicode Technical Standard
UUCP : Unix-to-Unix-Copy
UUI : User-to-User Information (ISDN - rfc 6567,7434)
UUID : Universally Unique Identifier
UUS : User-to-User Signalling (ISDN)
UUT : Unit Under Test
UWB : Ultra Wide Band
UWEM : Unified Web Evaluation Methodology
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VAC : VPN Accelerator Card / Valve Anti-Cheat (system) / Visual Approach Chart
VACM : View-based Access Control Model (rfc 2265, for SNMP)
VAM : Versatile Access Modem (Alcatel)
VAN : Value Added Network
VAP : Videotex Access Point / Value Added Partner
VAR : Value Added Reseller
VARP : VINES Address Resolution Protocol
VAS : Virtual address space / Value-added service
VAT : Value Added Tax
VAX : Virtual Address eXtended (Digital Eq. Corp.)
VBA : Visual Basic for Applications
VBD : Voiceband Data
VBI : Vertical Blanking Interval
VBL : Vertical Blanking
VBM : Volume BitMap
VBR : Variable Bit Rate
VBS : Visual Basic Script / Voice Broadcast Service
VBX : Visual Basic Extension
VCB : Volume Control Block
VCC : Virtual Channel Connection / Virtual Circuit Channel (ATM)
VCCV : Virtual Circuit Connectivity Verification (rfc 5885)
VCD : Video Compact Disk / Virtual character display / Vendor Code Drop
VCE : Video Codec Engine / Virtual Computing Environment Company
VCI : Virtual Channel Identifier (ATM)
VCM : Virtual Circuit Manager / Visualisation des Cibles Mobiles
VCO : Voltage Controled Oscillator
VCR : Video Cassette Recorder / Video Coding Recorder / Voice Cockpit Recorder
VCS : Voice communication system / Voice Changer Software / Version control system
VDC : Video Display Controller / Virtual Device Context
VDD : Voice-Data Discrimination
VDE : Verband Deutscher Elektrotechniker
VDI : Virtual Desktop Infrastructure/Interface / Virtual Device Interface
VDL : VHF Data Link / Vienna Definition Language
VDO : Vanishing Data Object
VDR : Voltage Dependanr Resistor / VHF data radio
VDS : Virus Detection System (Win95) / Visual DialogScript (Microsoft) / Virtual Dedicated Server / Video Distribution System / Volume Descriptor Sequence
VDSL : Very high speed Digital Subscriber Line
VDU : Video Display Unit
VEC : Video Enhanced Contrast
VEE : Visual Engineering Environment
VESA : Video Electronics Standards Association
VET : Virtual Enterprise Traversal (rfc 5558)
VFAT : Virtual File Allocation Table
VFB : Vertical Format Buffer
VFC : V Fast Class =V34
VFD : Vacuum Fluorescent Display
VFO : Variable Frequency Oscillator
VFP : Visual Fox Pro
VFR : Visual Flight Rules
VFS : Virtual File System
VFW : Video for Windows (Microsoft)
VGA : Video Graphics Array
VGCS : Voice Group Call Service
VGDA : Volume Group Descriptor Area / Variable Gain Digital Amp
VGM : Virtual Graphics Machine
VGS : Virtual Game Station
VGSA : Volume Group Status Area
VHDL : Very high speed integrated circuit Hardware Description Language
VHE : Virtual Home Environment (umts)
VHF : Very High Frequency (30-250Mhz) / Viral hemorrhagic fever
VHS : Video Home System
VIA : Versatile Interface Adapter / Virtual Image Agent
VICP : VINES Internet Control Protocol
VICS : Vehicle Information and Communication System
VIDA : Visitor Interaction Data Architecture
VII : Vehicle-infrastructure integration
VIM : Vi IMproved (text editor) / Video Intensified Microscopy / Velocity Interface Mezzanine (VMEbus)
VINES : Virtual Integrated Network Service (Banyan Systems)
VIO : Virtual Input/Output
VIP : Visual Interactive Programming / Visualising Interactive Processing / Versatile Internet Platform / VINES Internet Protocol / Video Input Processor / Virtual Internet Protocol (IETF)
VIP : Virtual IP address
VIPC : VINES Interprocess Communication Protocol
VIPO : Valid Inside Permitted Operations
VIR : Visual Information Retrieval
VIS : Visa Information System
VITA : VME International Trade Association
VLA : Very Large Array (telescope) / Virtual Learning Agent
VLAN : Virtual LAN
VLB : VESA Local Bus
VLBI : Very Long Baseline Interferometry
VLC : VideoLAN Client / Variable Length Coding / Visible Light Communications
VLDB : Volume Location Database / Very Large DataBase
VLM : Virtual Loadable Module
VLR : Visitor Location Register
VLS : Virtual Library System
VLSI : Very Large Scale Integration
VLT : Very Large Telescope
VMAP : Vector Map / Video Multiple Ad Playlist / VMware Academic Program
VMC : Visual Meteorologic Conditions
VMCI : Virtual Machine Communication Interface
VMDS : Version Managed Data Store
VME : Versa Module Eurocard / Virtual Machine Environment / Virtual Matrix Encryption
VMF : Virtual MainFrame
VMFS : Virtual Machine File System
VMG : Video Map Generator / Voice message / Velocity made good (mar.nav.)
VMGI : Video Manager Information
VML : Vector Markup Language
VMM : Virtual Memory Manager / Virtual Machine Monitor
VMOD : Varnish modules
VMP : Viewpoint Media Player
VMS : Virtual Memory System / Voicemail System / Video Management Software
VMSC : Visited Mobile Switching Center
VMXE : Virtual Machine Extensions Enable
VNA : Virtual Network Architecture / Vector Network Analyser
VNC : Virtual Network Computing / VFR Navigation Chart
VNF : Virtualised Network Function
VNS : Virtual Network Switching (rfc 2340)
VOB : Video Object
VOC : Visual Object Class / Volatile Organic Compound
VOD : Video-on-Demand
VOIP : Voice Over IP
VON : Voice over the Net
VOR : Vhf Omnidirectional Range
VPA : Virtual personal assistant
VPC : Virtual Path Channel / Virtual PC (Connectixª) / Virtual Private Cloud
VPD : Vital Product Data
VPDN : Virtual Private Data Network
VPE : Vapor Phase Epitaxy
VPF : Vector Product Format
VPI : Virtual Path Identifier (ATM) / Virtual Port ID
VPIM : Voice Profile for Internet Mail
VPLS : Virtual Private LAN Service
VPN : Virtual Private Network
VPS : Virus Protection Software / Virtual Private Server
VPT : Virtual Printer Technology
VPWS : Virtual Private Wire Service
VQL : Voice Query Language
VRAM : Video RAM
VRC : Vertical Redundancy Check / Vector to Raster Converter / Virtual Radar Client
VRF : Virtual Routing and Forwarding
VRI : Vertical Retrace Interrupt / Video Remote Interpreting
VRM : Vendor Relationship Management / Voltage regulator module
VRML : Virtual Reality Modeling Language
VR2 : Variable Rate Randomizer
VRRP : Virtual Router Redundancy Protocol (RFC 5798, 6527)
VRS : Voice Response System / Virtual Reference Station
VSAM : Virtual Storage Access Method
VSAT : Very Small Aperture Terminal
VSC : Voice Security Card / Voltage-source converter
VSI : Virtual Switching Instance
VSL : Virtual Shareware Library
VSMB : VINES Server Message Bock
VSN : Volume Serial Number
VSP : Voice Service Provider
VSPP : VINES Sequence Packet
VSS : VirusScan Security Suite (McAfee) / Volume Shadow (Copy) Service (Microsoft) / Visual Source Safe (Microsoft)
VST : Vietnam Standard Time / Virtual Specialist Technology
VSWR : Voltage Standing Wave Ratio
VTL : Virtual Terminal Language / Virtual Tape Library
VTLS : Virginia Technical Library System
VTOC : Volume Table of Contents
VTP : Virtual Terminal Protocol
VTR : VideoTape Recorder
VTS : Virtual Terminal Service / Virtual Training Suite / Vessel Tracking System / Vessel Traffic Services / Voucher Trading System (RFC 3506)
VTSI : Video Title Set Information
VTSS : Virtual Time Sharing and Shaping
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W3C : WordWide Web Consortium
WAAS : Wide Area Augmentation System (GPS extension)
WAB : Windows Address Book (filename extension)
WABI : Windows Application Binary Interface (Solaris/Sun)
WAC : World Area Codes / World Airport Codes
WACS : Wide Area Centrex Service / West Africa Cable System / Web-based Adult Content Server / Wireless Access Communications System / White Alice Communications System / Warning and Caution System
WAF : Web application firewall / Web application framework
WAFC : World Area Forecast Center
WAG : Web application gateway
WAI : Web Accessibility Initiative
WAIS : Wide Area Information Servers (rfc 1625) / Wechsler Adult Intelligence Scale
WAM : Web, Adaptation and Multimedia / Workstation Auditing Module / Wave Modulation / Wide-area Multilateration / Wrapped around multiple
WAMP : Windows Apache Mysql PHP
WAN : Wide Area Network
WAP : Wireless Application Protocol / Web Application Projects
WAR : (Java) Web ARchive
WARC : World Administrative Radio Conference
WARP : Warning Advice & Reporting Point
WAS : Web Application Security
WASC : Web Application Security Consortium
WASP : Wireless Application Service Provider / Women Airforce Service Pilots / Wide-Area Special Projectile / Windows Apache SQLServer PHP / Wide Area Search for Planets / Wideband Acoustic Signal Processing / White Anglo Saxon Protestant / What A Strange Person / We Are Sexual Perverts (band)
WAT : Windows Activation Technologies
WATS : Wide Area Telephone Service
WAVE : Wireless Access for the Vehicular Environment / Web Accessibility Evaluation Tool
WBEM : Web Based Enterprise Management
WBFS : Wii Backup File System
WBT : Web-Based Training / Wait Before Transmitting
WCAG : Web Content Accessibility Guidelines
WCCP : Web Cache Coordination Protocol
WCDMA : Wideband Code-Division Multiple Access
WCE : Wireless Cloud Element
WCF : Windows Communication Foundation
WCG : World Community Grid / World Cyber Games
WCM : Web Content Management
WCP : Warren Control Protocol
WCS : Wireless Control System (Cisco)
WDDM : Windows Display Driver Model
WDDX : Web Distributed Data eXchange
WDE : Whole Disk Encryption
WDG : Wed Design Group
WDM : Wavelength Division Multiplexing / Windows Driver Model (Microsoft)
WDP : Wireless Datagram Protocol
WDS : Wireless Distribution System / Windows Deployment Services / Worldwide Diagnostic System
WDU : Windows Desktop Update / Wireless Detection Unit / Wavelength De-multiplexing Unit
WECA : Wireless Ethernet Compatibility Alliance (now Wi-Fi Alliance)
WEF : Wincrypt Encrypted File (filename extension) / World Economic Forum
WEFT : Web Embedding Fonts Tool (Micosoft)
WELF : WebTrends™ Enhanced Log Format
WEP : Well-known Entry Point (MHS) / Wired Equivalent Privacy (IEEE) / Wireless Equivalency Protocol (Apple)
WEPA : Wired equivalent privacy algorithm / World EPA
WER : Windows Error Reporting
WET : Western European Time
WFS : Web Feature Service
WFW : Windows for Workgroup
WGA : Windows Genuine Advantage
WGS : World Geodesic System
WHM : WebHost Manager
WIA : Windows Image Acquisition
WIC : WAN Interface Card
Wicd : Wireless Interface Connection (Daemon) / Web Integration Compound Document
WID : Windows Internet Device / Women in Development
WIDE : Widely Integrated Distributed Environment
WIG : Wireless Internet Gateway
WIM : Write Into Memory / Wireless Identification Module
WIMAX : World Interoperability for Microwave Access
WIMP : Windowing Iconic Mouse-operated Pull-down menu system
WIN : Wireless intelligent network
WINA : WAP Interim Naming Authority
WINS : Windows Internet Naming Service
WIP : Wireless Internet Platform
WIPO : World Intellectual Property Organization
WISP : Wireless ISP / Wireless Identification and Sensing Platform / Wartime Information Security Program
WKS : Well-known service
WLAN : Wireless Local Area Network
WLL : Wireless Local Loop
WLM : Windows Live Messenger
WMA : Waste Management Area / Windows Media Audio
WMD : Windows Media Download
WMF : Windows Metafile
WMI : Windows Management Instrumentation
WML : Wireless Markup Language
WMM : Wi-Fi Multimedia / Windows Movie Maker
WMN : Wireless Mesh Network
WMS : Windows Messenger Service / Wide area Master Stations / Web Mapping Service / Warehouse Management System
WMV : Windows media video (filename extension: Windows media player)
WNRO : Week Number Rollover (GPS)
WOFF : Web Open File Format
WORM : Write Once Read Many
WOSA : Windows Open Services Architecture (Microsoft)
WOT : Web Of Trust
WPA : Wi-Fi Protected Access
WPAN : Wireless Personal Area Network
WPBX : Wireless Private Branch eXchange
WPD : WordPerfect document (filename extension)
WPES : Workshop on Privacy in the Electronic Society
WPF : Windows Presentation Foundation (Avalon)
WPM : Words Per Minute
WPML : WordPress Multilingual plugin
WPS : Wireless Positioning System / Wi-Fi Protected Setup / (Micosoft Works file format)
WRC : World Radiocommunication Conference
WRF : Weather Research and Forecasting
WRS : Worldwide Reference System / Wide area Reference Stations
WRT : Wireless Receiver/Transmitter
WSAD : (IBM) Websphere Studio Application Developper
WSB : Working State Bus
WSC : World Standardization Conference / Windows Security Center (Microsoft)
WSDL : Web Services Description Language
WSDM : Web Services Distributed Management
WSF : WorkStation Function / Windows Script File
WSH : Windows Scripting Host
WSI : Wafer Scale Integration / WS-I= Web Services Interoperability
WSIS : World Summit on the Information Society
WSL : Windows Scripting Language
WSN : Wireless sensor networks
WSON : Wavelength Switched Optical Network
WSP : Wireless Session Protocol
WSRI : Web Science Research Initiative
WSS : Wide screen signal
WSUS : (Microsoft) Windows Server Update Services
WTA : Wireless Telephony Application
WTLS : Wireless Transport Layer Security
WTP : Wireless Transaction Protocol
WTR : Wait-to-Restore
WTSC : World Telecommunication Standardization Conference (formerly CCITT Plenary Assembly)
WUSB : Wireless USB
WVS : Web Vulnerability Scanner
WWDC : Worldwide Developers Conference (Apple)
WWG : World Wide Grid
WWL : World Wide Locator
WWN : World Wide Name
WWP : Warm Water Pump / Wave and Wait Protocol / Weighted Way Point (mobility model)
WWRNS : Word Wide RadioNavigation System
WWW : World Wide Web / World Weather Watch
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XAML : XML transaction Authority Markup Language / eXtensible Application Markup Language (MS)
XARA : Cross App Ressources attack
XBAP : XAML Browser Application (Windows)
XBRL : eXtensible Business Reporting Language
XCAP : XML Configuration Access Protocol (RFC 4825)
XCF : eXperimental Computing Facility (image format of GIMP)
XCR : Exponential Challenge-Response (signature)
XDF : Extended Distance Feature
XDM : X Window Display Manager
XDR : eXternal Data Representation
XEP : XMPP Extension Protocol
XEX : Xor-encrypt-xor
XFF : X-Forwarded-For (header field)
XGA : eXtended Graphics Adapter (IBM)
XHR : XML HTTP Request
XID : eXchange Identification (HDLC) / eXperimental Interface Device
XKMS : XML Key Management Specification
XLMS : eXtended LMS / Excel macro-enabled workbook (file extension)
XLR : Extra Long Run (audio connector)
XLS : (Microsoft) Excel (FileName extension)
XLST : eXtensible Style Language Transformer
XMI : XML Metadata Interchange
XML : eXtensible Markup Language
XMLA : XML for Analysis
xmlns : XML Namespace
XMM : eXtended Memory Manager (LIM/AST)
XMP : X/Open Management Protocol / EXtensible Metadata Platform
XMPP : EXtensible Messaging and Presence Protocol (rfc 6120)
XMS : Extended Memory Specification
XMSS : eXtended Merkle Signature Scheme (rfc 8391)
XNS : Xerox Network System / eXtensible Name Service
XNU : X Not Unix
XOR : eXclusive OR / XML Oriented Retrieval
XPS : XML Paper Specification
XRF : Extended Recovery Facility (IBM)
XRN : eXpandable Resilient Networking (3Com)
XRS : Extensible Routing System (Alcatel)
XSD : XML Schema Definition
XSF : XMPP Standards Foundation
XSL : eXtensible Style Language
XSLT : eXtensible Stylesheet Language Transformation
XSRF : Cross-Site Request Forgery
XSS : eXisting Source System / Cross Site Scripting
XSSI : Cross Site Script Inclusion
XST : Cross site tracing
XTF : eXtensible Text Framework
XTI : X/Open Transport Interface
XTP : Express Transfer Protocol
XTS : XEX-based tweaked-codebook mode with ciphertext stealing
XWD : X-Windows Dump
XXE : XML External Entity
 
YAC : Yeast Artificial Chromosome / Youth Advisory Council / Yet another cleaner
YACC : Yet Another Cso Compressor
YAG : Yttrium Aluminium Garnet
YAM : Yet Another Modem
YAML : Yet Another Markup Language
YAP : Yahoo! Application Platform
YARA : Yet Another Recursive Acronym
YCSB : Yahoo Cloud Serving Benchmark
YGN : Young Generation Network
YIG : Yttrium Iron Garnet
YIN : YANG (rfc 6020) Independent Notation
YKHL : Yum, Kim, Hong, Lee (distance bounding protocol)
YQL : Yahoo! Query Language
YUM : Yellow dog Updater Modified
YUV : Luminance (luma) and 2 chrominance signals
 
ZAS : Zinc Arc Spraying
ZCAV : Zoned Constant Angular Velocity
ZDA : Zero Day Attack
ZDE : Zero day exploit
ZEC : Zone Echomail Coordinator (Fidonet)
ZFS : Zettabyte File System (or Z File System)
ZIF : Zero Insertion Force
ZIP : Zone Information Protocol / Zone Improvement Plan (post office code) / (compressed filename extension; from the Lempel-Ziv-Welch algorithm)
ZMH : Zone Mail Hour (Fidonet)
ZMQ : Zero Message Queuing
ZRP : Zone Routing Protocol
ZRTP : Zimmermann-Real-Time-Protocol / SRTP sur VOIP
ZSH : Zhong Shao shell
ZSI : Zentralstelle fur Sicherheit in der Informationstechnik
ZSK : Zone Signing Key
ZST : Zone Standard Time
ZUC : Zaurus Unit Converter
ZVT : Zero Voltage Transition / Zeitverwaltungstabelle

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