UA User Agent + User Area
UAE Unrecoverable Application Error
UAM User Authentication Method
UART Universal Asynchronous Receiver/Transmitter
UBR Unspecified Bit Rate
.UC2 Compressed File (file name extension) [UltraCompressor]
UCE Unsolicited Commercial Email
UCL Universal Communications Language
UCS Unicode Conversion Support + Universal Character Set +
User Coordinate System
UCT Universal Coordinated Time
UDA Universal Data Access [Microsoft]
UDB Universal Data Base
UDC Universal Decimal Classification + User Defined Commands
UDD User Data document
UDE Universal Data Exchange
UDEC * Universal Digital Electronic Computer [Burroughs]
UDF Universal Disk Format + User Defined Functions
UDG User Defined Gateway
UDP User Datagram Protocol
UDT Uniform Data Transfer + User-Defined Type
UFS Unix File System
UG User Group
UHCI Universal Host Controller Interface
UHF Ultra-High Frequency
UHL Universal Hypertext Link
UI Unix International + User Interface
UIC User Identification Code
UID User Identifier
UIMS User Interface Management System
UL Underwriters Laboratories +
Unordered List + Upload
ULA Uncommitted Logic Array
ULN Universal Link Negotiation
ULSI Ultra Large Scale Integration
UMA Unified Memory Architecture
UMB Upper Memory Block [LIM/AST]
UML Unified Modeling Language
UMTS Universal Mobile Telecommunications System
UNC Universal Naming Convention +
Uuencoded Netnews Collator [Unix]
UNCOL Universal Computed Oriented Language
UNI User-Network Interface
UNICOM Universal Integrated Communication (System)
UNICOS Universal Compiler FORTRAN compatible
UNII Unlicensed National Information Infrastructure
UNIVAC Universal Automatic Computer
UNIX (AT&T Bell Laboratories Operating System)
UNMA Unified Network Management Architecture
UP Uniprocessor
UPC Universal Product/Program Code + User Parameter Control
UPG Upgrade
UPL User Program Language
UPM Unix Programmer's Manual +
User Profile Management [IBM]
UPS Uninterruptible Power Supply/System
URC Uniform Resource Characteristics +
Uniform Resource Citation
UREP Unix RSCS Emulation Protocol (protocol)
URI Uniform Resource Identifier
URL Uniform Resource Locator
URN Uniform Resource Name/Number
US Unit Separator
USART Universal Synchronous-Asynchronous Receiver/Transmitter
USB Universal Serial Bus [Intel]
USENET User's Network [Internet]
USERID User Identification
USOC Universal Service Ordering Code
USQ Unsqueezed (files)
USR US Robotics (corporation)
USRT Universal Synchronous Receiver/Transmitter
USSA User Supported Software Association (United Kingdom)
UT User Terminal
UTC Coordinated Universal Time
UTI Universal Text Interchange/Interface
UTP Unshielded Twisted-Pair (cable)
UU Uuencode/Uudecode
UUCP Unix-To-Unix Copy Program
UUD UUDecoding [Unix]
UUDECODE Unix-To-Unix Decoding
UUE UUEncoding [Unix]
UUENCODE Unix-To-Unix Encoding
UUI User-To-User Information [AT&T]
UUID Universal Unique Identifier
UV Ultraviolet
V...
VA Virtual Address + Visual Age [IBM]
VAD value Added Dealer
VADD value Added Disk Driver
VADSL Very-High-Rate Asymmetric Digital Subscriber Line
VAL value + Voice Application Language
.VAL Validity Checks (file name extension) [Paradox]
VAM Virtual Access Method
VAN value Added Network
VAP value Added Process
VAR value Added Reseller + value Added Retailer + Variable
VAST Variable Array Storage Technology
VAX/VMS Virtual Address Extension/Virtual Memory System [DEC]
VB Variable Block + Visual Basic [Microsoft]
VBA Visual Basic for Applications [Microsoft]
VBE/AI Vesa Bios Extension/Audio Interface
VBI Vertical Blanking Interval
VBNS Very High Speed Backbone Network Service [MCI + NSF]
VBR Variable Bit Rate
VBRUN Visual Basic Runtime
vbs Visual Basic script
.VBX Visual Basic Extension (file name extension)
VCC Virtual Channel Connection
VCD Virtual Communications Driver
VCI Virtual Circuit Identifier
VCL Visual Component Library
VCN Virtual Cluster Number
VCOS Visual Caching Operating System [AT&T]
VCPI Virtual Control Program Interface
VCR Video Cassette Recorder
VDD Virtual Device Driver
VDDM Virtual Device Driver Manager
VDE Video Display Editor + Visual Development Environment
VDISK Virtual Disk
VDM Virtual DOS Machine [IBM]
VDMAD Virtual Direct Memory Access Device [Microsoft]
VDS Virtual DMA Services
VDSL Very-High-Data-Rate Digital Subscriber Line
VDT Video Dial Tone + Video Display Terminal
VDU Video Display Unit + Visual Display Unit
VEGA Video-7 Enhanced Graphics Adapter [Video-7, Inc.]
VEMM Virtual Expanded Memory Manager
VEMMI Versatile Multimedia Interface
VER Verify + Version
VERONICA Very Easy Rodent-Oriented Net-Wide Index to
Computer Archives [Internet]
VERR Verify Read Access
VERW Verify Write Access
VES Video Encoding Standard [Oracle]
VESA Video Electronics Standards Association
VF Virtual Floppy
VFAT Virtual File Allocation Table [Microsoft]
V.FC Version.First Class (communications standard)
VFD Vacuum Fluorescent Display
VFW Video For Windows [Microsoft]
VGA Video Graphics Array
VGC Video Graphics Controller
VHDL VHSIC Hardware Description Language
VHF Very-High Frequency
VHS Very High Speed + Video Home System +
Virtual Host Storage
VHSIC Very High Speed Integrated Circuit
VI Visual Interactive (editor) [UNIX]
VIA Virtual Interface Architecture [Intel]
VIE Virtual Information Environment
VIF Virtual Interface + Virtual Interrupt Flag
VIM Vendor Independent Mail +
Vendor Independent Messaging + Video Interface Module
VIO Video Input/Output + Virtual Input/Output
VINES Virtual Networking System [Banyan]
ViP Visual Programming [Lotus]
VIP Variable Information Processing +
Video Information Provider +
Virtual Interrupt Pending
VIPER Verifiable Integrated Processor for
Enhanced Reliability
VIS Video Information System [Tandy] +
Visual Instruction Set [Sun] +
Voice Information System
VJ HEADER Van Jacobsen Header (compression) [Unix]
VLAN Virtual Local Area Network
VL-BUS Vesa Local-Bus [VESA]
VLD Variable-Length Decoder
VLF Very Low Frequency
VLINK Visited Link [HTML]
VLIW Very Large Instruction Word
VLM Virtual Loadable Module
VLSI Very Large Scale Integration
VLSIPS Very Large Scale Immobilized Polymer Synthesis
VLT Variable List Table
VM Virtual Machine + Virtual Memory
VMA Virtual Memory Address
VMB Virtual Machine Boot
VME Versa Module Eurocard +
Virtual Memory Environment
VML Vector Markup Language [Microsoft]
VMM Virtual Machine/Memory Manager
VMOS Vertical MOS
VMP Virtual Modem Protocol
VMS Virtual Machine Storage + Virtual Memory System +
Voice Message System
VMT Virtual Memory Technique
VNA Virtual Network Architecture
VOC Creative Voice (format) [Sound Blaster]
VOD Video On Demand
VOIP Voice Over Internet Protocol
VOL Volume
VOM Volt-Ohm-Milliammeter
VOR Visions Of Reality
VOS Verbal/Voice Operating System
VP Virtual Path
VPD Virtual Printer Device + Vital Product Data [IBM]
VPDN Virtual Private Data Network
VPDS Virtual Private Data Service [MCI]
VPE Video Port Extensions [Microsoft] +
Visual Programming Environment
VPL Virtual Programming Language
VPM Video Port Manager
VPN Virtual Page Number + Virtual Private Network
VPS Voice Processing System
VPSC Vault, Process, Structure, Configuration
VPT Virtual Print Technology [Dataproducts]
VR Virtual Reality + Voltage Regulated/Regulator
VRAM Video Random Access Memory
VRD Virtual Retinal Display
VRE Voltage Regulated Extended
VRM Voltage Regulator Module
VRML Virtual Reality Modeling Language
(originally named Virtual Reality Markup Language)
VROOMM Virtual Real-time Object Oriented
Memory Manager [Borland]
.VRS WordPerfect Graphics Driver (file name extension)
VRT Voltage Regulation Technology [Intel]
VRU Voice Response Unit
VS Virtual Storage
VSAM Virtual Storage Access Method
VSAT Very Small Aperture Terminal
VSE Virtual Storage Extended
VSF Vertical Scanning Frequency
VSI Virtual Socket Interface
VSIO Virtual Serial Input Output
VSM Virtual Shared Memory + Virtual Storage Management +
Visual System Management [IBM]
VSN Volume Serial Number
VSOS Virtual Storage Operating System
VSYNC Vertical Sync
VT Vertical Tab
VTAM Virtual Telecommunications Access Method [IBM]
VTNS Virtual Telecommunications Network Service
VTS Volume Tracking Driver
VUI Video User Interface
VUP VAX Unit of Performance
VWB Visual WorkBench [Microsoft]
VWM Virtual Window Manager
VXA Variable-Speed Architecture [Ecrix]
VxD Virtual Extended Driver [Microsoft]
.VXD Virtual Device (file name extension) [Microsoft]
V&V Verification and Validation