| Term | Description |
|---|
| V&V | Verification and Validation
|
| V.FC | Version.First Class (communications standard)
|
| VA | Virtual Address + Visual Age [IBM]
|
| VAD | Value Added Dealer
|
| VADD | Value Added Disk Driver
|
| VADSL | (See DSL)
|
| VAI | Video As Input
|
| VAL | Value + Voice Application Language
|
| VAM | Virtual Access Method
|
| VAN | Value Added Network
|
| VAP | Value Added Process
|
| VAR | Value Added Reseller + Value Added Retailer + Variable
|
| variable width | As applied to a font, variable width means that different characters will have different widths as appropriate. For example, an "i" will take up much less space than an "m". The opposite of variable width is fixed width. The terms "proportional width" and "proportionally spaced" mean the same thing as variable width. Some common variable width fonts include Times, Helvetica, and Bookman. |
| VAST | Variable Array Storage Technology
|
| VAX | The VAX is a computer platform developed by Digital. Its plural is VAXen. VAXen are large expensive machines that were once quite popular in large businesses; today modern UNIX workstations have all the capability of VAXen but take up much less space. Their OS is called VMS. |
| 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
|
| VCC | Virtual Channel Connection
|
| VCD | Video Compact Disk + Virtual Communications Driver
|
| VCI | Virtual Circuit Identifier
|
| VCL | Visual Component Library
|
| VCM | Virtual Channel Memory
|
| 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
|
| VDI | Virtual Device Interface
|
| VDISK | Virtual Disk
|
| VDM | Virtual DOS Machine [IBM]
|
| VDMAD | Virtual Direct Memory Access Device [Microsoft]
|
| VDS | Virtual DMA Services
|
| VDSL | (See DSL)
|
| VDT | Video Dial Tone + Video Display Terminal
|
| VDU | Video Display Unit + Visual Display Unit
|
| vector | This term has two common meanings. The first is in the geometric sense: a vector defines a direction and magnitude. The second concerns the formatting of fonts and images. If a font is a vector font or an image is a vector image, it is defined as lines of relative size and direction rather than as collections of pixels (the method used in bitmapped fonts and images). This makes it easier to change the size of the font or image, but puts a bigger load on the device that has to display the font or image. The term "outline font" means the same thing as vector font. |
| 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]
|
| 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]
|
| VIC-20 | The Commodore VIC-20 computer sold millions of units and is generally considered to have been the first affordable home computer. It features a ROM-based BASIC and uses it as a default "OS". It is based on the 65xx family of processors. VIC (in case you are wondering) can stand for either video interface c or video interface computer. The VIC-20 is the precursor to the C64/128. |
| VIE | Virtual Information Environment
|
| VIF | Virtual Interface + Virtual Interrupt Flag
|
| VIM | Vendor Independent Mail +
Vendor Independent Messaging + Video Interface Module
|
| VINES | Virtual Networking System [Banyan]
|
| VIO | Video Input/Output + Virtual Input/Output
|
| ViP | Visual Programming [Lotus]
|
| VIPER | Verifiable Integrated Processor for
Enhanced Reliability
|
| Virtual Drive | See RAMdisk. |
| virtual machine | A virtual machine is a machine completely defined and implemented in software rather than hardware. It is often referred to as a "runtime environment"; code compiled for such a machine is typically called bytecode. |
| Virtual Memory | Method of usingharddisk space to provide extra memory.Simulates additional RAM.In Windows,the amount of virtual memory available equals the amount of free RAM plus theamount of disk space allocated to the swapfile. In MacintoshSystem 7, virtual memory is controlled in the Memory Control Panel. Thedefault setting is twice the amount of RAM in the machine. However, the amountof RAM plus the amount of virtual memory TOGETHER is the amount of disk spaceyou must allocate. For example, if you have 4 MB of RAM and set virtual memoryat 8 MB, 12 MB of disk space is allocated. |
| virtual reality | Virtual reality (often called VR for short) is generally speaking an attempt to provide more natural, human interfaces to software. It can be as simple as a pseudo 3D interface or as elaborate as an isolated room in which the computer can control the user's senses of vision, hearing, and even smell and touch. |
| Virtual Reality (VR) | An emerging technology that attemptsto fully immerse the user in an interactive computer generated environment. VRis rather ill-defined, but focuses on a more complex interaction with thecomputer, featuring at least 3Dinteractive video. |
| virus | A virus is a program that will seek to duplicate itself in memory and on disks, but in a subtle way that will not immediately be noticed. A computer on the same network as an infected computer or that uses an infected disk (even a floppy) or that downloads and runs an infected program can itself become infected. A virus can only spread to computers of the same platform. For example, on a network consisting of a WinTel box, a Mac, and a Linux box, if one machine acquires a virus the other two will probably still be safe. Note also that different platforms have different general levels of resistance; UNIX machines are almost immune, Win '95 / '98 / ME / XP is quite vulnerable, and most others lie somewhere in between. |
| VIS | Video Information System [Tandy] +
Viewable Image Size +
Visual Instruction Set [Sun] +
Voice Information System
|
| VJ | HEADER Van Jacobsen Header (compression) [Unix]
|
| VL-BUS | Vesa Local-Bus [VESA]
|
| VLA | Variable-Length Array
|
| VLAN | Virtual Local Area Network
|
| 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
|
| VLSM | Variable Length Subnet Mask
|
| 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
|
| VNOS | Visual Network Operating System
|
| VOC | Creative Voice (format) [Sound Blaster]
|
| VOD | Video On Demand
|
| VOFDM | Vector Orthogonal Frequency Division
Multiplexing [Cisco]
|
| 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 | Vendor Relationship Management + Voltage Regulator Module
|
| VRML | Virtual Reality Modeling Language
(originally named Virtual Reality Markup Language)
|
| VROOMM | Virtual Real-time Object Oriented
Memory Manager [Borland]
|
| VRRP | Virtual Router Redundancy Protocol
|
| VRT | Voltage Regulation Technology [Intel]
|
| VRU | Voice Response Unit
|
| VS | Virtual Storage
|
| VSAM | Video Surveillance and Monitoring +
Virtual Storage Access Method
|
| VSAT | Very Small Aperture Terminal
|
| VSE | Virtual Storage Extended
|
| VSF | Vertical Scanning Frequency
|
| VSI | Virtual Socket/Switch 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]
|
| VTK | Visualization Toolkit
|
| 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]
|
| VXML | Voice Extensible Markup Language
|
