AA 	Antialiasing
AAA 	authentication, authorization and accounting, siehe Triple-A-System
AAC 	Advanced Audio Coding
AACS 	Advanced Access Content System
AAL 	ATM Adaptation Layer
AAM 	ATA/ATAPI Architecture Model
	Automatic acoustic management
ACC 	Adaptive Computing Controller (SAP)
ACE 	ASCII Compatible Encoding
	Access Control Entry (Eintrag in der Access Control List)
ACK 	acknowledge 'bestätige', siehe ACK (Signal) und Netzjargon
ACL 	Access Control List
ACPI 	Advanced Configuration and Power Interface
ACR 	Advanced Communication(s) Riser oder
	Automatic carriage return oder
	Attenuation To Crosstalk Ratio
ACS 	Applied Computer Science (Angewandte Informatik) oder
	ATA/ATAPI Command Set (siehe ATA/ATAPI)
AD 	Active Directory
ADAM 	Active Directory Application Mode
ADAPT 	Application Design for Analytical Processing Technologies
ADB 	Apple Desktop Bus oder
	Android Debug Bridge
ADC 	Apple Display Connector (Variante von DVI)
ADDS 	Active Directory Domain Services (Erweiterung des früheren Verzeichnisdienstes ADS von Microsoft)
ADO 	ActiveX Data Objects
ADS 	Automated Deployment Service oder
	Alternate Data Streams
ADSL 	Asymmetric Digital Subscriber Line, Variante von DSL
ADSP 	AppleTalk Data Stream Protocol
AEP 	AppleTalk Echo Protocol
AES 	Advanced Encryption Standard
AF 	Anisotropes Filtern
AFK 	Away from Keyboard
AFP 	Apple Filing Protocol
AGA 	Advanced Graphics Architecture (Amiga-Chipsatz)
AGESA 	AMD Generic Encapsulated Software Architecture
AGP 	Accelerated Graphics Port
AGU 	Address Generation Unit
AHCI 	Advanced Host Controller Interface
AI 	Artificial Intelligence (Künstliche Intelligenz, deutsche Abkürzung: KI)
AIA 	Authority Information Access
AIFF 	Audio Interchange File Format
AIM 	AOL Instant Messenger
AIR 	Adobe Integrated Runtime
AIT 	Advanced Intelligent Tape
AJAX 	Asynchronous Javascript and XML
aka 	also known as (auch bekannt unter dem Namen …) siehe: Pseudonym
ALM 	Application Lifecycle Management (u. a. von Borland)
ALSA 	Advanced Linux Sound Architecture
ALU 	Arithmetisch-logische Einheit (arithmetisch-logische Einheit, Teil einer CPU)
AMD 	Advanced Micro Devices
AMQP 	Advanced Message Queuing Protocol
ANSI 	American National Standards Institute
AOP 	Aspektorientierte Programmierung
AOSP 	Android Open Source Project
AP 	Access Point
APDU 	Application Protocol Data Unit
API 	Application Programmers/Programming Interface oder
	Adaptive Planungsintelligenz
APIC 	Advanced Programmable Interrupt Controller
APIPA 	Automatic Private IP Addressing
APL 	A Programming Language
APL 	Abschlusspunkt Linientechnik
APM 	Advanced Power Management
APOP 	Authenticated Post Office Protocol
APU 	Accelerated Processing Unit
AQE 	Augmented Quad Edge (Datenstruktur zur Speicherung und effizienten Traversierung eins 3D Voronoi-Diagramms)
AR 	Augmented Reality
ARM 	Advanced RISC Machines Ltd. oder
	Application Response Measurement
ARP 	Address Resolution Protocol
ARQ 	Automatic Repeat reQuest
ARS 	Adaptive Rate Selection
ASCII 	American Standard Code for Information Interchange (amerikanische Standardkodierung für den Informationsaustausch)
ASIC 	Application-Specific Integrated Circuit (anwendungsspezifische integrierte Schaltung)
ASN.1 	Abstract Syntax Notation One
ASP 	Active Server Pages oder
	Application Service Providing oder
	AppleTalk Session Protocol
ASPI 	Advanced SCSI Programming Interface
AT 	Advanced Technology (Bauform für Mainboards und Gehäuse)
ATA 	Advanced Technology (AT) Attachment
ATAPI 	AT-Attachment Packet Interface
ATM 	Asynchronous Transfer Mode oder
	Asynchronous Time Multiplexing oder
	Adobe Type Manager
ATPG 	Automatic Test Pattern Generation
ATX 	Advanced Technology Extended
AUI 	Attachment Unit Interface
AV 	Anti-Virus
AVI 	Audio Video Interleave
B
B 	Bell Laboratories oder
	Programmiersprache B (Vorgänger von C)
B2A 	Business-to-Administration
B2B 	Business-to-Business
B2C 	Business-to-Consumer
B2D 	Backup-to-Disk Datensicherung auf Festplatte im Gegensatz zu Backup-to-Tape
B2E 	Business-to-Employee
B2T 	Backup-to-Tape Datensicherung auf ein Bandmedium wie DAT, DLT, LTO, …
BAM 	Block Availability Map, siehe Dateisystem
BAPI 	Business Application Programming Interface
BASIC 	Beginner’s All-purpose Symbolic Instruction Code (Programmiersprache)
BBS 	Bulletin Board System
BCC 	Blind Carbon Copy (dt. Blindkopie, Feld im Kopf einer E-Mail, das zusätzliche Adressaten enthält, die aber nicht den anderen Adressaten mitgeteilt werden) oder
	Block Check Character (dt. Blockprüfzeichen)
BCD 	Binary Coded Decimal
BCPL 	Basic Combined Programming Language
BD 	Blu-ray Disc
BDC 	Backup Domain Controller oder
	Business Data Catalog im Microsoft Office SharePoint Server
BDD 	Binary Decision Diagram
BER 	Basic Encoding Rules oder
	Bit Error Rate
BERT 	Bit Error Rate Test (Bitfehlerratentest)
BFD 	Bidirectional Forwarding Detection
BGA 	Ball Grid Array
BGP 	Border Gateway Protocol
BiDi 	Bidirectional Text Layout, siehe Bidirektionaler Text
BI 	Business Intelligence
BIL 	Bus-Interface-Logic
BIOS 	Basic Input Output System
BLOB 	Binary Large Object
BNC 	Bayonet Neill Concelman, siehe BNC-Steckverbinder
BOFH 	Bastard Operator From Hell
BOM 	Byte Order Mark
BOOTP 	Bootstrap Protocol
BOS 	Base Operating System (dt. Betriebssystem)
BPEL 	Business Process Execution Language
BSC 	Binary Synchronous Communication
BSD 	Berkeley Software Distribution
BSOD 	Blue Screen of Death
BTO 	Build-to-Order
BTX 	Balanced Technology Extended oder
	Bildschirmtext
C
C 	Programmiersprache C
CAAD 	Computer Aided Architectural Design (Computergestütztes architektonisches Planen und Entwerfen)
CA 	Certificate Authority
CAD 	Computer-Aided Design (Computerunterstütztes Design)
CAE 	Computer-aided engineering
CAF 	Composite Application Framework
CAM 	Computer-aided manufacturing
CAN 	Controller Area Network oder
	Content Addressable Network
CAPI 	Common ISDN Application Programming Interface
CAPWAP 	Control And Provisioning of Wireless Access Points
CARP 	Common Address Redundancy Protocol
CAS 	Column Address Strobe: Dynamic Random Access Memory#CAS
CAS 	Computeralgebrasystem
CAT 	Catalog Service
CAV 	Constant Angular Velocity
CAVE 	Cave Automatic Virtual Environment
CBO 	Cost Based Optimizer, kostenbasierten Optimizer für Zugriffe auf Datenbanksätze
CC 	Carbon Copy oder
	Creative Commons
	C Compiler
CCD 	Charge-coupled Device
CC/PP 	Composite Capability/Preference Profiles
CCU 	Camera Control Unit
CD 	Compact Disc
CDATA 	Character Data
CDC 	Connected Device Configuration
CDE 	Common Desktop Environment
CDMA 	Code Division Multiple Access
CD-R 	Compact Disc Recordable
CD-ROM 	Compact Disc Read-Only Memory
CD-RW 	Compact Disc ReWriteable
CEPT 	Conférence Européenne des Administrations des Postes et des Télécommunications
CFML 	ColdFusion Markup Language
CFSM 	Communicating Finite State Machines
CGA 	Color Graphics Adapter
CGI 	Common Gateway Interface
CHAP 	Challenge Handshake Authentication Protocol
CHS 	Cylinder Head Sector
CICS 	Customer Information Control System
CIDR 	Classless Inter-Domain Routing
CIF 	Common Intermediate Format
CIFS 	Common Internet File System
CIM 	Computer-integrated manufacturing oder
	Common Information Model
CISC 	Complex Instruction Set Computer
CLDC 	Connected Limited Device Configuration
CLI 	Call Level Interface oder
	Command Line Interpreter oder
	Common Language Infrastructure
CLOB 	Character Large Object
CLM 	Certificate Lifecycle Manager
CLR 	Common Language Runtime
CLTS 	Connectionless Transport Service, ein verbindungsloser Service, beispielsweise UDP
CLV 	Constant Linear Velocity
CM 	Content-Management
CMM 	Capability Maturity Model oder
	Color Management Module
CMOS 	Complementary Metal Oxide Semiconductor (dt. Komplementärer Metall-Oxid-Halbleiter)
CMS 	Content-Management-System
CMYK 	Cyan Magenta Yellow Key, siehe CMYK-Farbmodell
CO 	Callable Object
COBOL 	Common Business Oriented Language
CODASYL 	Conference on Data Systems Languages
COM 	Component Object Model oder
	Computer on Module (Kernhardware eines Computers implementiert auf einem steckbaren Modul)
COMA 	Cache-only-Memory-Access
CORBA 	Common Object Request Broker Architecture
COTS 	Connection Oriented Transport Service, ein verbindungsorientierter Service, wie beispielsweise TCP
COW 	Copy-On-Write, Verfahren zur Vermeidung von überflüssigen Kopien von Daten
CPL 	Call Processing Language oder
	Combined Programming Language oder
	Common Public License
CP/M 	Control Program/Monitor, später: Control Program for Microcomputers
CPPM 	Content Protection for Pre-Recorded Media, Kopierschutzverfahren der DVD-Audio
CPRI 	Common Public Radio Interface
CPRM 	Content Protection for Recordable Media
CPSL 	Common Pattern Specification Language
CPU 	Central Processing Unit
CPUID 	Central Processing Unit IDentifikation
CRC 	Cyclic Redundancy Check, Verfahren zur Ermittlung von Übertragungsfehlern
CRE 	Content Relationship Engine
CRL 	Certificate Revocation List
CRM 	Customer-Relationship-Management
CRT 	Cathode Ray Tube
CRUD 	Create, Read, Update, Delete (Datenbankoperationen)
CSA 	Common-Scrambling-Algorithmus oder
	Connector, Switch, Attenuator theory
CSI 	Common System Interface
CSM 	Compatibility Support Module
CSMA/CA 	Carrier Sense Multiple Access/Collision Avoidance
CSMA/CD 	Carrier Sense Multiple Access/Collision Detection
CSP 	Communicating Sequential Processes
CSS 	Cascading Style Sheets oder
	Content Scramble System
CSV 	Character Separated Values, Comma Separated Values
CTL 	Complex Text Layout
CTS 	Clear To Send
CUDA 	Compute Unified Device Architecture
CUI 	Character User Interface, Text-orientierte Benutzeroberfläche
CUoD 	Capacity Upgrade on Demand
CUPS 	Common Unix Printing System
CVS 	Concurrent Versions System
CWM 	Common Warehouse Metamodel
D
D2D2T 	Disk to disk to tape (Backup)
DAE 	Digital Audio Extraction
DAL 	Data Abstraction Layer
DAO 	Data Access Objects (Microsoft) oder
	Data Access Object (Entwurfsmuster) oder
	Disc-At-Once (Schreibmethode)
DAP 	Directory Access Protocol
DAT 	Digital Audio Tape
DAU 	Dümmster anzunehmender User
DAU 	daily active user – Facebook: täglich aktive(r) Benutzer
DAV 	Distributed Authoring and Versioning; siehe WebDAV
DB 	Datenbank
DBMS 	Database management system
DBP 	Database Publishing
DC 	Domain Controller oder
	Domain Component
DCE 	Data Communication Equipment oder
	Distributed Computing Environment
DCIM 	Digital Camera Images
DCL 	Data Control Language oder
	DIGITAL Command Language
DCO 	Device Configuration Overlay (siehe ATA/ATAPI) oder
	Dynamic Code Obfuscation
DCOM 	Distributed Component Object Model
DCP 	Disk Control Program
DCS 	Dynamic Channel Selection
DCT 	Diskrete Cosinus Transformation
DCTL 	Direct Coupled Transistor Logic
DD 	Double Density (Diskette)
DDC 	Display Data Channel
DDE 	Dynamic Data Exchange
DDF 	Disk Data Format
DDI 	Device Driver Interface
DDL 	Data Definition Language
DDoS 	Distributed Denial of Service
DDR 	Double Data Rate
DDS 	Digital Data Storage oder
	Direct Digital Synthesis oder
	Direct Draw Surface
DDV 	Datendirektverbindung
DDX 	Direct Data Exchange
DECT 	Digital Enhanced Cordless Telecommunications
DENIC 	DE Network Information Center
DEP 	Data Execution Prevention
DES 	Data Encryption Standard
DFS 	Distributed File System oder
	Dynamic Frequency Selection oder
	Depth-First Search
DFÜ 	Datenfernübertragung (engl.: DUN)
DH 	Data Highway
DHCP 	Dynamic Host Configuration Protocol
DHTML 	Dynamic HTML, Kombination von Hypertext Markup Language und JavaScript
DIL 	Dual in-line package
DIME 	Direct Internet Message Encapsulation
DIMM 	Dual Inline Memory Module
DIS 	Distributed Interactive Simulation
DIT 	Directory Information Tree
DivX 	Digital Video Express
DL 	Double Layer
DLL 	Dynamic Link Library
DLM 	Document Lifecycle Management
DLP 	Digital Light Processing
DLR 	Dynamic Language Runtime, siehe .NET
DMA 	Direct Memory Access
DMCA 	Digital Millennium Copyright Act
DMD 	Digital Micromirror Device
DMI 	Desktop Management Interface oder
	Direct Media Interface
DML 	Data Manipulation Language
DMS 	Dokumentenmanagementsystem (Document Management System)
DMTF 	Distributed Management Task Force
DMZ 	Demilitarized Zone (Demilitarisierte Zone)
DNS 	Domain Name System
DNSBL 	DNS-based Blackhole List
DoD 	Department of Defense
DOM 	Document Object Model
DOS 	Disk Operating System oder
	Denial of Service (DoS)
dpi 	Dots per Inch
DPA 	Data Path Array
DPS 	Desktop Purchasing System oder
	Data Protection System
DPU 	Data Path Unit
DRAC 	Dell Remote Access Controller
DRAM 	Dynamic Random Access Memory
DRI 	Direct Rendering Infrastructure
DRL 	Data Retrieval Language
DRM 	Digital Rights Management
DRT 	Document Related Technologies
DS 	double-sided (Diskette oder Speichermodul)
DSA 	Distributed Systems Architecture oder
	Directory System Agent
DSL 	Digital Subscriber Line oder
	Domain Specific Language
DSP 	Digital Signal Processor
DSR 	Data Set Ready
DSSS 	Direct Sequence Spread Spectrum
DSSSL 	Document Style Semantics and Specification Language
DTD 	Document Type Definition
DTE 	Data Terminal Equipment
DTM 	Dual Transfer Mode
DTO 	Data Transfer Object
DTP 	Desktoppublishing
DTR 	Data Terminal Ready
DUA 	Directory User Agent
DUI 	D graphical user interface
DUN 	Dial-Up Networking
DVB 	Digital Video Broadcasting
DVB-C 	Digital Video Broadcasting – Cable
DVB-H 	Digital Video Broadcasting – Handhelds
DVB-S 	Digital Video Broadcast – Satellite
DVB-T 	Digital Video Broadcasting – Terrestrial
DVD 	Digital Versatile Disc
DVI 	Digital Visual Interface
DVCS 	Distributed Version Control System (Verteilte Versionsverwaltung)
DWH 	Data-Warehouse
DWT 	Diskrete Wavelet-Transformation
DXF 	Drawing Interchange Format (auch Drawing Exchange Format)
E
EAI 	Enterprise Application Integration
EBCDIC 	Extended Binary Coded Decimals Interchange Code
EBNF 	Extended Backus-Naur Form
ECC 	Error-correcting code
ECM 	Enterprise Content Management
ECMA 	European Computer Manufacturers Association
ECP 	Extended Capability Port oder
	Encryption Control Protocol
ED 	Extra-high Density (Diskette)
EDD 	Enhanced Disk Drive Services (PC-BIOS Funktionen für Zugriff auf Festplatten)
EDDL 	Electronic Device Description Language
EDGE 	Enhanced Data Rates for GSM Evolution
EDI 	Electronic Data Interchange
EDID 	Extended Display Identification Data
EDM 	Electronic Document Management
EDP 	Electronic Data Processing
EDV 	Elektronische Datenverarbeitung, engl.: EDP
EEPROM 	Electrically Eraseable Programmable Read Only Memory
EFI 	Extensible Firmware Interface
EFS 	Encrypting File System
EGA 	Enhanced Graphics Adapter
EHCI 	Enhanced Host Controller Interface
EIA-232 	Electronic Industries Alliance 232, bekannt als V.24; ursprünglich RS-232
EIB 	Europäischer Installationsbus
EIDE 	Enhanced Integrated Device Electronics
EIGRP 	Enhanced Interior Gateway Routing Protocol
EISA 	Extended Industry Standard Architecture
EIST 	Enhanced Intel SpeedStep Technology
EJB 	Enterprise Java Beans
EJBQL 	EJB Query Language
EL 	Expression Language
EM64T 	Extended Memory 64 Technology, alter Name von Intel 64
EMS 	Expanded Memory Specification
EMV 	Elektromagnetische Verträglichkeit
EOD 	End Of Discussion (Slang)
EOF 	End of File oder
	Enterprise Objects Framework
EPLD 	Erasable Programmable Logic Device
EPP 	Enhanced Parallel Port oder
	Encrypting PIN Pad oder
	Enhanced Performance Profiles bei RAM
EPROM 	Eraseable Programmable Read Only Memory
EPS 	Encapsulated PostScript
EPSS 	Electronic Performance Support System
ESB 	Enterprise Service Bus
ERP 	Enterprise Resource Planning
ES 	Enterprise Service
ESCD 	Extended System Configuration Data
ESP 	EFI System Partition, siehe Definition in GUID Partition Table
ESQL 	Embedded SQL
ESSID 	Extended Service Set Identifier
ET 	Entscheidungstabelle
ETB 	End of Transmission Block, ein Steuerzeichen bei der Datenübertragung
ETL 	Extract, Transform, Load
EUCS 	End User Computing Satisfaction
EVA 	Eingabe – Verarbeitung – Ausgabe (EVA-Prinzip) oder
	Enterprise Virtual Array (Disk Array von Hewlett Packard für mehrere Terabyte Daten)
EWF 	Enhanced Write Filter, wird bei Windows XP embedded verwendet
exFAT 	Extended File Allocation Table
Exif 	Exchangeable Image File Format for Digital Still Cameras
Ext2 	Second extended Filesystem
F
FAI 	Fully Automatic Installation
FAQ 	Frequently Asked Questions
FAT 	File Allocation Table
FB 	Facebook
FC 	Fibre Channel
FCFS 	First-Come First-Served, siehe First In – First Out
FD 	Floppy Disk
FDD 	Floppy Disk Drive
FDDI 	Fiber Distributed Data Interface
FDMA 	Frequency Division Multiple Access
FET 	Field Effect Transistor
FFT 	Fast Fourier Transform (schnelle Fourier-Transformation)
FGA 	Floating Gate Array
FHSS 	Frequency Hopping Spread Spectrum
FIFO 	First In – First Out
FILO 	First In – Last Out, siehe Last In – First Out
FLAC 	Free Lossless Audio Codec
FLOP 	Floating Point Operation (Gleitkommaoperation)
FLOPS 	Floating Point Operations per Second
FPGA 	Field Programmable Gate Array
FPLA 	Field Programmable Logic Array
FPS 	Frames per Second (Bilder pro Sekunde. Bildfrequenz) oder
	First Person Shooter
FPU 	Floating Point Unit (Gleitkommaeinheit, numerischer Coprozessor)
FQDN 	Fully Qualified Domain Name
FSAA 	Full Scene Antialiasing
FSB 	Front Side Bus
FSM 	Finite State Machine
FTBFS 	Fails to build from source (Debian-Slang)
FTP 	File Transfer Protocol
FTTH 	Fibre To The Home
FW 	Forwarding (bei E-Mails oft benutzt)
G
GAL 	Generic Array Logic
GAN 	Global Area Network
GBIC 	Gigabit Interface Converter
GC 	Garbage Collection / Garbage-Collector oder
	Global Catalog
GCC 	GNU Compiler Collection
GCR 	Group Coded Recording
GDDR 	Graphics Double Data Rate
GFS 	Global File System
GID 	Group Identification, siehe Benutzer- und Rechteverwaltung unter Unix
GIF 	Graphics Interchange Format
GINA 	Graphical Identification and Authentication
GIS 	Geoinformationssystem
GLBP 	Gateway Load Balancing Protocol
GLE 	Graphics Layout Engine
GLU 	OpenGL Utility Library
GLUT 	OpenGL Utility Toolkit
GML 	Geography Markup Language
GMPLS 	Generalized Multiprotocol Label Switching (Weiterentwicklung von MPLS)
GNOME 	GNU Network Object Model Environment
GNU 	GNU's Not Unix (ein rekursives Akronym), siehe GNU-Projekt
GOOSE 	Generic Object Oriented Substation Events
GP 	Guided Procedures
GPG 	GNU Privacy Guard
GPL 	GNU General Public License
GPRS 	General Packet Radio Service
GPT 	GUID Partition Table
GPU 	Graphics Processing Unit
GPX 	GPS Exchange Format
GRE 	Gecko Runtime Environment oder
	Generic Routing Encapsulation
GRUB 	Grand Unified Bootloader
GSM 	Global System for Mobile Communications
GTK 	GIMP-Toolkit
GUI 	Graphical User Interface
GUID 	Globally Unique Identifier
H
HAL 	Hardware Abstraction Layer
HBA 	Host-Bus-Adapter
HBCI 	Homebanking Computer Interface
HCA 	Host Channel Adapter
HCI 	Human Computer Interaction
HCR 	Handprint Character Recognition
HD 	Hard Disk
HDCP 	High-bandwidth Digital Content Protection
HDD 	Hard Disk Drive
HDE 	Hauptverband des Deutschen Einzelhandels
HDL 	Hardware Description Language
HDLC 	High-Level Data Link Control
HDMI 	High Definition Multimedia Interface
HDRR 	High Dynamic Range Rendering
HDTV 	High Definition Television
HGC 	Hercules Graphics Card
HID 	Human Interface Device
HIP 	Host Identity Protocol
HIPPI 	High Performance Parallel Interface
HMA 	High Memory Area
HMD 	Head-Mounted Display
HMI 	Human Machine Interface
HPC 	High Performance Computing
HPET 	High Precision Event Timers
HPFS 	High Performance File System
HRHD 	High Resolution High Definition
HSCSD 	High Speed Circuit Switched Data
HSDPA 	High Speed Downlink Packet Access
HSRP 	Hot Standby Router Protocol
HSUPA 	High Speed Uplink Packet Access
HT 	HyperTransport
HTC 	High Throughput Computing
HTCP 	Hyper Text Caching Protocol
HTML 	Hypertext Markup Language
HTPC 	Home Theater Personal Computer
HTT 	Hyper-Threading-Technologie
HTTP 	Hypertext Transfer Protocol
HTTPS 	Hypertext Transfer Protocol Secure
I
I18N 	Internationalization
IA5 	Internationales Alphabet Nr. 5
IANA 	Internet Assigned Numbers Authority
I2C 	Inter-Integrated Circuit
ICANN 	Internet Corporation for Assigned Names and Numbers
ICC 	International Color Consortium
ICH 	I/O Controller Hub
ICMP 	Internet Control Message Protocol
ICS 	Internet Connection Sharing
IDE 	Integrated Development Environment oder
	Integrated Drive Electronics, siehe ATA/ATAPI
IDEF 	Integrated Definition Methods
IDF 	Intel Developer Forum
IDL 	Interface Definition Language
IDMS 	Integrated Database Management System
IDN 	Internationalized Domain Name
IDNA 	Internationalizing Domain Names in Applications
IED 	Intelligent Electronic Device
IEEE 	Institute of Electrical and Electronics Engineers
IETF 	Internet Engineering Task Force
IFF 	Interchange File Format
IGP 	Integrated Graphics Processor
IGMP 	Internet Group Management Protocol
IGRP 	Interior Gateway Routing Protocol
IIOP 	Internet Inter-ORB Protocol
IIS 	Microsoft Internet Information Services
IKE 	Internet Key Exchange (siehe IPsec)
ILDA 	International Laser Display Association
ILM 	Information Lifecycle Management
IMAP 	Internet Message Access Protocol
IMC 	Internet Mail Connector (siehe Microsoft Exchange Server)
IMQ 	Intermediate Queuing Device
IMS 	Information Management System
INET 	Internet
Intel 	Integrated Electronics
IP 	Internet Protocol
IPC 	Inter-Process Communication oder
	Instructions per cycle
IPP 	Internet Printing Protocol
IPPD 	Integrated Product and Process Development
IPPP 	ISDN Point-to-Point Protocol
IPS 	Instructions per Second
IPSec 	Internet Protocol Security
IPT 	Intel Identity Protection Technology
IPTV 	Internet-Protokoll-Fernsehen
IPX 	Internetwork Packet Exchange
IRC 	Internet Relay Chat
IrDA 	Infrared Data Association
IRQ 	Interrupt Request
IRTF 	Internet Research Task Force
IRV 	Internationale Referenzversion (des IA5)
ISA 	Industry Standard Architecture
iSCSI 	Internet SCSI
ISDN 	Integrated Services Digital Network
ISO 	Internationale Organisation für Normung
ISO-C 	Variante von C
ISP 	Internet Service Provider
ISSE 	Internet Streaming SIMD Extensions
IT 	Informationstechnik / Information Technology
ITIL 	IT Infrastructure Library
ITU 	International Telecommunication Union (Internationale Fernmeldeunion)
IxD 	Interaction Design
J
J2EE 	Java Platform, Enterprise Edition
J2ME 	Java Platform, Micro Edition
J2SE 	Java Platform, Standard Edition
JACK 	JACK Audio Connection Kit
JAXP 	Java API for XML Processing
JCL 	Job Control Language
JDBC 	Java Database Connectivity
JDF 	Job Definition Format
JDIC 	JDesktop Integration Components
JDK 	Java Development Kit
JES 	Job Entry Subsystem
JEU 	Jump Execution Unit
JFS 	Journaled File System
JMF 	Java Media Framework
JMS 	Java Message Service
JNDI 	Java Naming and Directory Interface
JNLP 	Java Network Launching Protocol
JOLAP 	Java Based OLAP interface
JPEG 	Joint Photographic Experts Group
JRE 	Java Runtime Environment
JSF 	JavaServer Faces
JSP 	JavaServer Pages
JSR 	Java Specification Request
JTM 	Job Transfer and Manipulation
JVM 	Java Virtual Machine
K
KDE 	K Desktop Environment
KI 	Künstliche Intelligenz
KM 	Konfigurationsmanagement oder
	Knowledge Management
KML 	Keyhole Markup Language
KRA 	Key Recovery Agent
KVM 	Keyboard – Video – Mouse
L
L10N 	Localization
L2TP 	Layer 2 Tunneling Protocol
LACP 	Link Aggregation Control Protocol
LADSPA 	Linux Audio Developer’s Simple Plugin API
LAMP 	Linux-Apache-MySQL-PHP
LAN 	Local Area Network
LAT 	Local Area Transport
LBA 	Logical Block Addressing
LCD 	Liquid Crystal Display
LCN 	Local Control Network
LCoS 	Liquid Crystal on Silicon
LCR 	Least Cost Router
LDAP 	Lightweight Directory Access Protocol
LDS 	Lightweight Directory Services
LDU 	Logical Data Unit
LED 	Light Emitting Diode
LER 	Label Edge Router
LFS 	Large File Support oder
	Linux From Scratch
LFSR 	Linear Feedback Shift Register
LGA 	Land Grid Array
LIFO 	Last In – First Out
LILO 	Linux Loader oder
	Last In – Last Out (s. a. First In – First Out)
LISP 	List Processing
LLC 	Logical Link Control
LON 	Local Operating Network
LP 	Line Printer (Zeilendrucker, s. a. Drucker)
LPC 	Low Pin Count
LPP 	Licensed Product Package
LPT 	Line Printer
LRU 	Least recently used
LS120 	Laser Servo Disk
LSA 	Local Security Authority
LSASS 	Local Security Authority Subsystem
LSB 	Least Significant Bit
LSR 	Label Switch Router
LTE 	Long Term Evolution
LUG 	Linux User Group
LUN 	Logical Unit Number
LVDS 	Low Voltage Differential Signaling
LVM 	Logical Volume Manager
M
M2M 	Machine-to-Machine
M4A 	MPEG-4 Audio
MAC 	Media Access Control
MAC 	Machine Authentication Code
MAK 	Multiple Activation Key
MAPI 	Messaging Application Programming Interface
MAN 	Metropolitan Area Network
MAU 	monthly active user – Facebook: monatlich aktive(r) Benutzer oder
	Multistation Access Unit
MBR 	Master Boot Record
MCA 	Micro Channel Architecture
MCF 	Meta Content Framework
MCH 	Memory Controller Hub
MCM 	Multi-Chip-Modul
MCP 	Multi Chip Package, siehe Multi-Chip-Modul oder
	Master Control Program (Betriebssystem von Burroughs) oder
	Media Communications Processor (von Nvidia entwickelter Prozessor)
MCX 	Media Center Extender
MDAC 	Microsoft Data Access Components
MDCT 	Modifizierte diskrete Kosinustransformation oder
	Multi-detector Computed Tomography oder
	Multislice Detector Computed Tomography oder
	Multi-row-detector Computed Tomography
MFM 	Modified Frequency Modulation
MFT 	Master File Table
MFU 	Most Frequently Used
MHP 	Multimedia Home Platform
MIDI 	Musical Instrument Digital Interface
MIDS 	Multifunctional Information Distribution System
MII 	Media Independent Interface
MIIS 	Microsoft Identity Integration Server
MIMD 	Multiple-Instruction Multiple-Data
MIME 	Multipurpose Internet Mail Extensions
MIPS 	Million Instructions per Second oder
	Microprocessor without interlocked pipeline stages
MKV 	Matroska Video
MMI 	Man Machine Interface, siehe Mensch-Maschine-Schnittstelle
MMORPG 	Massively Multiplayer Online Role-Playing Game
MMS 	Multimedia Messaging Service
MMU 	Memory Management Unit
MMX 	Multi Media Extension
mobo 	Slang für Motherboard
MOD 	Magneto Optical Disc
MOO 	Mud object oriented
MOST 	Media Oriented System Transport
MP3 	MPEG-1 Audio Layer 3
MP4 	MPEG-4
MPEG 	Moving Picture Experts Group
MPI 	Message Passing Interface
MPLS 	Multiprotocol Label Switching
MPP 	Massively Parallel Processing
MP/M 	Multi-User Version des CP/M (Control Program for Microcomputers)
MPU 	Micro Processor Unit (siehe Mikroprozessor) oder
	Memory Protection Unit
MQTT 	Message Queue Telemetry Transport
MRAM 	Magnetoresistive Random Access Memory
MRCP 	Media Resource Control Protocol
MRU 	Maximum Receive Unit oder
	Most Recently Used
M$ 	Slang für Microsoft
MSB 	Most Significant Bit
MSDN 	Microsoft Developer Network
MSDNAA 	MSDN Academic Alliance
MSIMD 	Multiple Single Instruction Multiple Data
MSN 	Microsoft Network oder
	Multiple Subscriber Number
MTA 	Mail Transfer Agent
MTBF 	Mean Time Between Failures
MTU 	Maximum Transmission Unit
MUA 	Mail User Agent
MUD 	Multi User Dungeon
MVC 	Model View Controller
MX 	Mail Exchange Resource Record
MZR 	Multiple Zone Recording
N
NAC 	Network Access Control
NAL 	Network Abstraction Layer
NAN 	National Area Network
NAS 	Network Attached Storage
NAT 	Network Address Translation
NBD 	Network Block Device
NCP 	NetWare Core Protocol
NCQ 	Native Command Queuing
NDES 	Network Device Enrollment Service
NDIS 	Network Driver Interface Specification
NDS 	Novell Directory Services
NEDC 	New Enterprise Data Center
NEXT 	Near End Crosstalk
NFS 	Network File System
NGSCB 	Next Generation Secure Computing Base
NIC 	Network Information Center oder
	Network Interface Card
NNTP 	Network News Transfer Protocol
NOC 	Network Operation Center
NRU 	Not Recently Used (siehe Paging)
NRZ 	Non Return to Zero (auch NRZI = Non Return to Zero Invert)
NSS 	Name Service Switch
NTBA 	Network Termination for ISDN Basic rate Access
NTFS 	New Technology File System
NTP 	Network Time Protocol
NTSC 	National Television Standards Committee
NUI 	Natural User Interface
NUMA 	Non-Uniform Memory Access
NVE 	Networked Virtual Environment
NVRAM 	Non Volatile Random Access Memory
NWDS 	NetWeaver Developer Studio
O
OAN 	Open Access Network
OASIS 	Organization for the Advancement of Structured Information Standards
OCI 	Open Catalog Interface
OCP 	Überstromschutz (Over Current Protection)
OCR 	Optical Character Recognition
OCSP 	Online Certificate Status Protocol
ODBC 	Open DataBase Connectivity
ODMC 	On Demand Clock Modulation
ODMG 	Object Database Management Group
ODR 	Octal Data Rate
OEM 	Original Equipment Manufacturer
OFDM 	Orthogonal Frequency Division Multiplexing
OGC 	Open Geospatial Consortium (vormals OpenGIS Consortium)
OHCI 	Open Host Controller Interface
OLAP 	Online Analytical Processing
OLE 	Object Linking and Embedding
OLED 	Organic Light Emitting Diode
OLSR 	Optimized Link State Routing
OLTP 	Online Transaction Processing
OODBMS 	Object-Oriented DataBase Management System
OOo 	OpenOffice.org
OOP 	Objektorientierte Programmierung
OPC 	Operation Planning and Control oder
	OLE for Process Control
OQL 	Object Query Language
ORDBMS 	Object-Relational DataBase Management System
OS 	Operating System
OSA 	Open Systems Architecture
OSGi 	Open Services Gateway Initiative
OSI 	OSI-Modell
OSPF 	Open Shortest Path First
OSS 	Open Sound System oder
	Open-Source-Software
OSSD 	Output Signal Switching Device
OU 	Organizational Unit, eine Teilstruktur einer Organisation, z. B. eine Abteilung
OWS 	OpenGIS Web Service (siehe Open Geospatial Consortium)
P
P2PTV 	Peer-to-Peer-TV
P2P 	Peer-to-Peer
PADI 	PPPoE Active Discovery Initiation
PAG 	Program Analyzer Generator
PAL 	Programmable Array Logic oder
	Phase Alternating Line
PAM 	Pluggable Authentication Module
PAN 	Personal Area Network
PAP 	Password Authentication Protocol oder
	Printer Access Protocol oder
	Programmablaufplan
PATMOS 	Power And Timing Modelling, Optimization and Simulation
PBCC 	Packet Binary Convolution Coding
PC 	Personal Computer oder
	Program Counter
PCA 	Programmable Counter Array
PCB 	Process Control Block oder
	Printed Circuit Board (Platine)
PCI 	Peripheral Component Interconnect
PCIe/PCI-E 	Peripheral Component Interconnect Express
PCI-X 	Peripheral Component Interface Extension
PCMCIA 	Personal Computer Memory Card International Association
PC/SC 	Personal Computer/Smart Card
PDA 	Personal Digital Assistant
PDC 	Primary Domain Controller
PDF 	Portable Document Format
PDM 	Product Data Management
PDU 	Protocol Data Unit oder
	Power Distribution Unit
PEG 	PCI Express for Graphics
Perl 	Practical Extraction and Report Language (Backronym)
PFS 	Perfect Forward Secrecy
PGA 	Pin Grid Array
PGP 	Pretty Good Privacy
PHP 	PHP: Hypertext Preprocessor (rekursives Akronym)
PI 	Process Integration
PIA 	Peripheral Interface Adapter
PIC 	Participant Identification Code
PIC 	Programmable Interrupt Controller
PID 	Personally-Identifiable Data
PIM 	Personal Information Manager
PIMF 	Pair In Metal Foil
PING 	Packet Inter-Network Groper
PIO 	Programmed Input/Output
PKI 	Public Key Infrastructure
PL/I 	Programming Language One
PLA 	Programmable Logic Array
PLM 	Product-Lifecycle-Management
PLMA 	Private Label Manufacturers Association
PMF 	Pointer to Member Function (Datentyp der Programmiersprache C++)
PMU 	Power Management Unit
PNG 	Portable Network Graphics
PnP 	Plug and Play
PoE 	Power over Ethernet
POF 	Polymere optische Faser
POJO 	Plain Old Java Object
POP 	Post Office Protocol
POP3 	Post Office Protocol Version 3
POSIX 	Portable Operating System Interface for UniX
POST 	Power On Self-Test
POTS 	Plain Old Telephone System
PPD 	Postscript Printer Description
PPI 	Pixel per Inch
PPP 	Point-to-Point Protocol
PPPoE 	PPP over Ethernet
PPTP 	Point-to-Point Tunneling Protocol
PPU 	Physics Processing Unit
PRBS 	Pseudo-random bit stream
PS 	PostScript
PSA 	Pseudo Application als Microsoft-Office-2007-Dokument, wie PowerPoint oder Excel
PSACR 	Power Sum Attenuation to Crosstalk Ratio
PSAI 	Pseudo Application Interface, liefert Daten in Echtzeit an andere Anwendungen oder andere Hardware
PSD 	Photoshop Document
PSTN 	Public Switched Telephone Network
PVC 	Permanent Virtual Circuit
PWM 	Pulse Width Modulation
PXE 	Preboot Execution Environment
Q
QDR 	Quadruple Data Rate, Weiterentwicklung von Double Data Rate
QPI 	QuickPath Interconnect
QoS 	Quality of Service
QUXGA 	Quad Ultra Extended Graphics Array
QVGA 	Quarter Video Graphics Array
QWUXGA 	Quad Wide Ultra Extended Graphics Array
QXGA 	Quad Extended Graphics Array
R
RAD 	Rapid Application Development
RAID 	Redundant Array of Independent Disks, ursprünglich Redundant Array of Inexpensive Disks
RADIUS 	Remote Authentication Dial-In User Service
RAM 	Random-Access Memory
RAR 	Resource Adapter
RARP 	Reverse Address Resolution Protocol
RAS 	Remote Access Service
RAS 	Row Address Strobe
RBL 	Realtime Blackhole List
RCP 	Rapid Control Prototyping oder
	Rich-Client-Platform oder
	Remote Copy Protocol
RDBMS 	Relational Database Management System
RDF 	Resource Description Framework
RDP 	Remote Desktop Protocol
RED 	Random Early Detection
REST 	Representational State Transfer
REU 	RAM Expansion Unit
REXX 	Restructured Extended Executor Language
RFC 	Request for Comments
RFC 	Remote Function Call
RFID 	Radio Frequency Identification
RGB 	Red Green Blue (Rot Grün Blau)
RI 	Ring Indicator
RIA 	Rich Internet Application
RIMM 	Rambus In-Line Memory Modul
RID 	Relative Identifier
RIP 	Routing Information Protocol oder
	Raster Image Process
RISC 	Reduced Instruction Set Computer
RLE 	Run-length encoding
RLL 	Run Length Limited
RMI 	Remote Method Invocation
RMS 	Rights Management Services
ROI 	Region of Interest (in der Bildverarbeitung)
ROM 	Read Only Memory
RPC 	Remote Procedure Call
RPG 	Role Playing Game oder
	Report Program Generator
RPM 	RPM Package Manager (rekursives Akronym, ehemals RedHat Package Manager)
RPS 	Rights Protection System
RS-232 	Recommended Standard 232, eigentlich: Radio Sector 232, heute: EIA-232
RSA 	Rivest, Shamir, Adleman
RSH 	Remote Shell
RSS 	Really Simple Syndication
RTC 	Real Time Clock
RTF 	Rich-Text-Format
RTFM 	Read The Fucking Manual
RTL 	Register Transfer Level (Ebene in Hardware / Hardware-Modellierung)
RTOS 	Realtime Operating System
RTP 	Realtime Transport Protocol
RTS 	Request To Send
RTSI 	Real Time System Integration
RTTI 	Runtime Type Information
RUE 	Rich User Experiences
S
SAA 	Systems Application Architecture
SACD 	Super Audio Compact Disc
SAFT 	Simple Asynchronous File Transfer
SAM 	Security Account Manager
SAN 	Storage Area Network oder
	System Area Network
SANE 	Scanner Access Now Easy oder
	Standard Apple Numeric Environment
SAS 	Serial Attached SCSI
SASL 	Simple Authentication and Security Layer
SAT 	SCSI/ATA Translation
SATA 	Serial ATA
SATL 	SCSI/ATA Translation Layer (siehe SCSI/ATA Translation)
SAX 	Simple API for XML
SBC 	Session Border Controller oder
	single-board computer
SBP-2 	Serial Bus Protocol, Protokoll aus der IEEE1394- bzw. Firewire- bzw. iLink-Welt
SCAM 	SCSI Configuration AutoMatically
SCEP 	Simple Certificate Enrollment Protocol
SCP 	Secure Copy Protocol
SCPI 	Standard Commands for Programmable Instruments
SCSA 	Secure Content Storage Association
SCSI 	Small Computer System Interface
SCUMM 	Script Creation Utility for Maniac Mansion
SD 	Single Density (Diskette)
SDF 	Synchronous Data Flow
SDH 	Synchronous Digital Hierarchy
SDK 	Software Development Kit oder
	System Design Kit
SDL 	Service Description Language (siehe Web Services Description Language) oder
	Simple DirectMedia Layer oder
	Specification and Description Language
SDLC 	Synchronous Data Link Control oder
	Software Development Life Cycle
SDR 	Single Data Rate
SDSL 	Symmetric Digital Subscriber Line (Variante von DSL)
SEO 	Search Engine Optimization
SFF 	Small Form Factor
SFP 	Small Form-factor Pluggable (umgangssprachlich auch mini-GBIC)
SGML 	Standard Generalized Markup Language
SHFS 	Shell File System
SHTTP 	Secure Hyper Text Transport Protocol
SIM 	Subscriber Identity Module
SIMD 	Single Instruction Multiple Data
SIMM 	Single Inline Memory Module
SIP 	Session Initiation Protocol oder
	Sideway Information Passing
SIPP 	Single Inline Pin Package (siehe Single Inline Memory Module)
SIS 	Single Instance Storage
SL 	Microsoft Silverlight
SLA 	Service-Level-Agreement
SLAM 	Simultaneous Localization and Mapping
SLD 	Second Level Domain oder
	Styled Layer Descriptor
SLI 	Scalable Link Interface
SLIP 	Serial Line Internet Protocol
SLL 	Static Link Library
SLNP 	Simple Library Network Protocol
SLP 	Service Location Protocol
SLR 	Scalable Linear Recording
SMAP 	Simple Mail Access Protocol
SMART 	Self-Monitoring, Analysis and Reporting Technology
SMASH 	Systems Management Architecture for Server Hardware
SMB 	System Management Bus oder
	Server Message Block
SMBIOS 	Systems Management BIOS
SMD 	Surface Mounted Device
SMIL 	Synchronized Multimedia Integration Language
SMI-S 	Storage Management Initiative – Specification
SML 	Standard ML oder
	System Management Language
S/MIME 	Secure / Multipurpose Internet Mail Extensions
SMP 	Symmetric Multi-Processing, siehe Symmetrisches Multiprozessorsystem
SMS 	Short Message Service
SMT 	Simultaneous Multithreading
SMTP 	Simple Mail Transfer Protocol
S/N 	Serial Number
SNA 	Systems Network Architecture (IBM-Großrechner)
SNMP 	Simple Network Management Protocol
SOA 	Service Oriented Architecture oder
	Start of Authority (im DNS, siehe SOA Resource Record)
SOAP 	Simple Object Access Protocol
SOX 	Sarbanes-Oxley Act
S/PDIF 	Sony/Philips Digital Interface
SPDX 	Software Package Data Exchange
SPEC 	Standard Performance Evaluation Corporation
SPEWS 	Spam Prevention Early Warning System
SPF 	Sender Policy Framework
SPI 	Serial Peripheral Interface
SPLC 	Secure Product Lifecycle
SPM 	Scratch Pad Memory
SPoF 	Single Point of Failure
SPP 	System Platform Processor (NVIDIAs Gegenstück zu Intels MCH)
	Standard Parallel Port
SPW 	Satisfaction per watt (Von Intel vorgeschlagene, objektivere Kennzahl als PPW (Performance per Watt))
SQL 	Structured Query Language (Strukturierte Abfragesprache), Datenbankabfragesprache
SRAM 	Static Random Access Memory
SRM 	Service Resolution Management
SRP 	Secure Remote Password, Sicherheitsstandard für Authentifizierungsverfahren
SS 	single-sided (Diskette oder Speichermodul)
SSD 	Solid-State-Drive
SSE 	Streaming SIMD Extensions
SSH 	Secure Shell
SSI 	Server Side Includes
SSID 	Service Set Identifier
SSL 	Secure Sockets Layer oder
	Syntax/Semantic Language
SSO 	Single Sign-on
ST 	Simple Transformations
STFW 	Search the fucking web
STP 	Shielded Twisted Pair
STUN 	Simple traversal of UDP over NATs
SUXGA 	Super Ultra Extended Graphics Array
SVCD 	Super Video Compact Disc
SVDRP 	Simple Video Disk Recorder Protocol
SVG 	Scalable Vector Graphics
SVGA 	Super Video Graphics Array
SVN 	Subversion
SXGA 	Super Extended Graphics Array
T
Tcl 	Tool command language
TC 	Turbo Cache
TCO 	Total Cost of Ownership
TCP 	Transmission Control Protocol
TCPA 	Trusted Computing Platform Alliance
TCP/IP 	Transmission Control Protocol / Internet Protocol
TDMA 	Time Division Multiple Access
TDP 	Thermal Design Power
TEDS 	Transducer Electronic Data Sheet
TFT 	Thin Film Transistor
TFTP 	Trivial File Transfer Protocol
TIPC 	Transparente Inter-Process Communication
TKIP 	Temporal Key Integrity Protocol
TLB 	Translation Lookaside Buffer
TLD 	Top-Level-Domain oder
	Tag Library Descriptor
TLM 	Transaction Level Modelling
TLS 	Transport Layer Security
TM 	Transactional Memory
TOS 	The Operating System oder
	Tramiel Operating System (Betriebssystem der Atari-Computer)
TPC 	Transmitter Power Control oder
	Transaction Processing Performance Council
TPI 	Tracks Per Inch
TPM 	Trusted Platform Module
TPoX 	Transaction Processing over XML
TS 	Timeserver oder
	Terminal Server oder
	TeamSpeak oder
	Transport Stream
TSC 	Time Stamp Counter
TSP 	Traveling Salesman Problem
TSO 	Time-Sharing Option
TTL 	Time-to-live oder
	Transistor-Transistor-Logik
TWAIN 	Toolkit Without An Interesting Name
TWI 	Two-wire Interface
U
UAA 	Universal Audio Architecture
UAC 	User Account Control
UART 	Universal Asynchronous Receiver Transmitter
UAT 	User Acceptance Test
UBE 	Unsolicited Bulk Email
UCD 	User Centered Design
UCE 	Unsolicited Commercial E-Mail
UEFI 	Unified Extensible Firmware Interface
UC 	Unified Communications
UCP 	Universal Computer Protocol
UCS 	Universal Character Set
UDDI 	Universal Description, Discovery and Integration
UDF 	Universal Disk Format
UDF 	User Defined Function
UDMA 	Ultra-Direct Memory Access
UDP 	User Datagram Protocol oder
	Usenet Death Penalty
UFS 	Unix File System
UHCI 	Universal Host Controller Interface
UI 	User Interface oder
	User Interaction
UID 	User identifier oder
	User Interface Design
UMA 	Uniform Memory Access oder
	Unified Memory Architecture oder
	Universal Multimedia Access
UMB 	Upper Memory Block
UMDF 	User-Mode Driver Framework
UML 	Unified Modeling Language
UMTS 	Universal Mobile Telecommunications System
UPnP 	Universal Plug and Play
UPS 	Uninterruptible Power Supply
URI 	Uniform Resource Identifier
URL 	Uniform Resource Locator
USB 	Universal Serial Bus
USV 	Unterbrechungsfreie Stromversorgung
UTF 	Unicode Transformation Format
UTM 	Unified threat management
UTP 	Unshielded Twisted Pair
UUG 	Unix User Group
UWB 	Ultra Wide Band
UXD 	User Experience Design (siehe User Experience)
UXGA 	Ultra Extended Graphics Array
V
VAFC 	VESA Advanced Feature Connector
VB 	Visual Basic - in den 2 Varianten Visual Basic Classic (steht für die VB-Versionen bis VB6) und Visual Basic .NET (mit der Abkürzung VB.NET)
VBA 	Visual Basic for Applications
VBS 	Visual Basic Script
VC 	Visual Composer
VCD 	Video-CD oder virtual channel descriptor
VCI 	virtual channel identifier
VCS 	Version Control System (Versionsverwaltung)
VDR 	Video Disk Recorder (Festplattenrekorder)
VDSL 	Very High Speed Digital Subscriber Line (Variante von DSL)
VESA 	Video Electronics Standards Association
VFAT 	Virtual FAT
VFC 	VESA Feature Connector
VFS 	Virtual Filesystem Switch
VGA 	Video Graphics Array
VHDL 	Very High Speed Integrated Circuit Hardware Description Language
VLAN 	Virtual Local Area Network
VLB 	VESA Local Bus
VLIW 	Very Long Instruction Word
VLSI 	Very Large Scale Integration
VM 	Virtuelle Maschine
VMS 	Virtual Memory System
VNC 	Virtual Network Computing
VO 	Virtual Organisation (im Grid-Computing)
VoIP 	Voice over IP
VP 	Visual Programming
VPI 	virtual path identifier
VPL 	Visual Programming Language
VPN 	Virtual Private Network
VR 	Virtual Reality
VRAM 	Video Random Access Memory
VRML 	Virtual Reality Modeling Language
VRRP 	Virtual Router Redundancy Protocol
VSAM 	Virtual Storage Access Method (IBM-Großrechner)
VST 	Virtual Studio Technology
VTAM 	Virtual Terminal Access Method (IBM-Großrechner)
VTS 	Virtual Tape Server
VXLAN 	Virtual Extensible LAN
W
W2K 	Windows 2000
W2Kx 	Windows 2Kx (Windows 2003 = W2K3, Windows 2008 = W2K8)
W3C 	World Wide Web Consortium
WAIS 	Wide Area Information Servers
WAMP(P) 	Windows-Apache-MySQL-PHP(-Perl)
WAN 	Wide Area Network
WAP 	Wireless Application Protocol
WBEM 	Web-Based Enterprise Management
WCS 	Web Coverage Service
WDDX 	Web Distributed Data Exchange
WDS 	Wireless Distribution System
WEP 	Wired Equivalent Privacy
WFS 	Web Feature Service
WIDL 	Web Interface Definition Language
WIMP 	WIMP (Benutzerschnittstelle) für Windows, Icons, Menus, Pointing device
WINE 	Wine Is Not an Emulator (rekursives Akronym)
WINS 	Windows Internet Naming Service
WISP 	Wireless Internet Service Provider
WLAN 	Wireless Local Area Network (Kabelloses Lokales Netzwerk)
WLL 	Wireless Local Loop
WMA 	Windows Media Audio
WML 	Wireless Markup Language
WMM 	Wireless Multimedia
WMS 	Web Map Service
WOL 	Wake on LAN
WORM 	Write Once Read Multiple
WPA 	Wi-Fi Protected Access
WQVGA 	Wide Quarter Video Graphics Array
WRS 	Web Registry Service
WS-CDL 	WS-Choreography Description Language
WSDL 	Web Services Description Language
WSDM 	WS-Distributed Management
WSH 	Windows Scripting Host
WSRF 	WS-Resource Framework
WSRM 	WS-Reliable Messaging
WSUXGA 	Wide Super Ultra Extended Graphics Adapter
WSVGA 	Wide Super Video Graphics Array
WSXGA 	Wide Super Extended Graphics Array
WTS 	Windows Terminal Server (Terminalserver)
WUXGA 	Wide Ultra Extended Graphics Array
WVGA 	Wide Video Graphics Array
WWAN 	Wireless Wide Area Network
WWW 	World Wide Web
WXGA 	Wide Extended Graphics Array
WYSISLWYG 	What You See Is Sort-of Like What You Get (sprich: wiesel-wig) (deutsch: „Was Du siehst ist in etwa wie das, was du bekommst“), zynische Bezeichnung für WYSIWYG-Programme, die nicht halten, was sie versprechen
WYSIWYG 	What You See Is What You Get (sprich: wi-szi-wig) (deutsch: „Was du siehst ist was du bekommst“). Bezeichnung für graphische HTML-Editor und Textverarbeitungsprogramme, bei denen das gedruckte Ergebnis genau so aussieht wie auf dem Bildschirm
X
X3D 	Extensible 3D (VRML-Nachfolger)
XAML 	eXtensible Application Markup Language
XAMPP 	Extended Apache/MySQL/PHP/Perl
XGA 	Extended Graphics Array
xHCI 	Extensible Host Controller Interface
XHTML 	Extensible Hypertext Markup Language
XI 	Exchange Infrastructure (Seit SAP NetWeaver 7.0: PI – Process Integration)
XILP 	XILP: Internet Links People
XML 	Extensible Markup Language
XML-RPC 	Extensible Markup Language Remote Procedure Call
XMPP 	Extensible Messaging and Presence Protocol
XMS 	Extended Memory Specification
XMSF 	Extensible Modeling and Simulation Framework
XOG 	XML Open Gateway
XrML 	Extensible rights Markup Language
XSD 	XML Schema Definition
XSL 	Extensible Stylesheet Language
XSL-FO 	Extensible Stylesheet Language – Formatting Objects
XSLT 	XSL Transformation
XT 	Extended Technology
Y
Y2K 	Year 2 Kilo (Year 2000)
YAGNI 	You Ain’t Gonna Need It
YaST 	Yet another Setup Tool
Z
ZBR 	Zone Bit Recording
ZFS 	Zettabyte File System