W3 Info Tec

Copyright 1994-2003, Daniel Frankl, Ph.D.
V AFC VESA [Video Electronics Standards Association] Advanced Feature Connector (VESA AFC)
VARs Value Added Resellers (companies or individuals that put PC systems together--usually systems with more advanced and more expensive components).
VBA Visual Basic Application (MS Windows programming environment)
VBI Vertical Blanking Interval (the vertical portion of a conventional TV signal)
vBNS very high performance Backbone Network Service (vBNS is a result of a joint project by MCI Worldcom and the National Science Foundation to provide Internet2 institutions of higher education with a nationwide high-performance network environment for research and education)
VBPJ Visual Basic Programmer's Journal
.vbx Visual Basic (VB) custom control file extension (16-bit custom controls are special additional features that may be added to a given standard application to enhance its usefulness).
VC Virtual Circuit
VCL Visual Component Library
V.C.O.T. Virtual Community of Tomorrow (interesting multimedia rich Web site: www.vcot.com)
VDIF VESA Display Information Format files (contain all the necessary configuration parameters for getting optimal resolution and refresh rate operation from a specified monitor).
VDISK Virtual Disk Drive (makes some limited use of the memory above 1MB while running DOS)
VDT Video Display Tube (Early 1980s Terminal that included a keyboard fused with the monochrome screen).
Computer generated pictures that are drawn by combining predesigned shapes, i.e., squares, circles, triangles, lines, arcs, etc. Since vector-based clip art images look the same at any size they are preferred over bitmaps that can have a blocky look.
VER Version (Typing VER at the C:\ prompt on a DOS running system displays the version of MS-DOS loaded on your system.
Veronica A Gopher search engine
Part of the TV screen that is not in view of the naked eye and may be used for the transfer of information, such as software applications, through a portion of a standard broadcast signal).
VESA Video Electronics Standards Association
V.FC V.Fast Class (28.8Kbps modems and up)
VGA Video Graphics Adapter/Array or 8513, 8514A (PC monitor display standard that allows a maximal resolution of 640 X 480 pixels and 256 colors out of a palette of 262).
VIP VFX1 Interface Protocol card (VR [Virtual Reality] device)
VIRUS A virus is a segment of machine code (most viruses are small programs containing 200-400 bytes) that "infect" larger 'host' programs as they copies in their code when activated. Once infected, every time the program is activated, the viral code is executed and the virus keeps duplicating itself and further infecting the program or data.
ViSCA Sony Video System Control Architecture
VL-Bus VESA Local Bus (Video Electronics Standards Association, Local Bus replaced the earlier ISA [Industry Standard Architecture] boards that reach their limit at 8 MHZ)
VLMs Virtual Loadable Modules
VLSI Very Large-Scale Integration; VGA [Video Graphics Array or Adapter] card that contains a large number of gate arrays or logical gates (IBM technological advance that enabled the VGA card to work with a wide array of earlier technologies at an improved performance over the EGA [Enhanced Graphics Adapter] card).
VLSM Variable Length Subnet Mask
VM Virtual Machine
The ability of a computer to recognize words spoken by its user to give commands or input text and other data.
Voltage Electrical force (also described as "potential voltage drop" or the difference in pressure between two ends of an electrical current)
VON Voice-On-the Net (for more info see: http://www.von.com)
VOS Virtual Orientation System (device that tracks head movements for VR [Virtual Reality] systems
VPN Virtual Private Networks
VRAM Video Random Access Memory (video memory with dual porting that help the graphics accelerator chip maintain bandwidth by allowing a bidirectional flow of information; VRAM operates at very high speeds, 50-60 nanoseconds; It is used on boards that are designed to support high monitor refresh rates; also see DRAM [Dynamic RAM])
VRS Viewer Responce System is an interactive network that connects the instructor with students
VRT Voltage Reduction Technology (Intel's split-voltage Pentium technology that reduces power consumption for 90-MHz and higher Pentium CPUs from over 5 watts to between 2.5-3.5 watts for standard operations. The lower power consumption also solved the overheating problem and meltdowns experienced with earlier versions of Pentium 60 & 66).
VSF Vertical Scanning Frequency (Multiple frequency Super VGA; also see HSF or Horizontal Scanning Frequency).
VT100 DEC's [Didital Equipment Corporation] standard for terminal connection.

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Page updated: Jan. 03, 2003