Computer Terminology

Terminology begins with V
Terms
Definations
VCI
Stands for "Virtual Channel Identifier." The VCI, used in conjunction with the VPI (virtual path indicator), indicates where an ATM cell is to travel over a network
VDU
A VDU is a "Visual Display Unit." It is another term for monitor or screen, but may also refer to a projector or other type of display.
Vector Graphic
Unlike JPEGs, GIFs, and BMP images, vector graphics are not made up of a grid of pixels. Instead, vector graphics are comprised of paths, which are defined by a start and end point, along with other points, curves, and angles along the way.
Veronica
The name stands for "Very Easy Rodent-Oriented Netwide Index to Computerized Archives." 
Vertical Market Software
A vertical market is one that supplies goods to a specific industry.
VFAT
Stands for "Virtual File Allocation Table." 
VGA
Stands for "Video Graphics Array." It is the standard monitor or display interface used in most PCs.
Video Card
Most of the processing done on a computer is done via the computer's central processing unit, or CPU. So in order to give the CPU a break and help it run more efficiently, a video card can be used to process the graphics portion of the processing load.
Virtual Memory
Because computer has a finite amount of RAM, it is possible to run out of memory when too many programs are running at one time. This is where virtual memory comes in. Virtual memory increases the available memory your computer has by enlarging the "address space," or places in memory where data can be stored. It does this by using hard disk space for additional memory allocation.
Virtual Reality
Virtual Reality mean "created, simulated, or carried on by means of a computer or computer network." Therefore, this is best described as an illusion of reality created by a computer system.
Virtualization
Virtualization allows a single computer to run multiple operating systems. For example, using virtualization software, a Mac OS X computer can run Windows and a Windows computer can run Linux.
Virus
Like a biological virus, a computer virus is something you don't want to get. Computer viruses are small programs or scripts that can negatively affect the health of your computer.
Visual Basic
Visual Basic is a programming language and development environment created by Microsoft. It is an extension of the BASIC programming language.
VLB
Stands for "VESA Local Bus." (VESA stands for "Video Electronics Standards Association"). The VLB, or VL-bus is a hardware interface on the computer's motherboard that is attached to an expansion slot.
VLE
Stands for "Virtual Learning Environment." A VLE is a virtual classroom that allows teachers and students to communicate each other online.
VoIP
Stands for "Voice Over Internet Protocol," and is often pronounced "voip." VoIP is basically a telephone connection over internet.The data is sent digitally, using the Internet Protocol (IP) instead of analog telephone lines. This allows people to talk to one another long-distance and around the world without having to pay long distance or international phone charges.
VPI
Stands for "Virtual Path Identifier." The VPI is an 8-bit header inside each ATM cell that indicates where the cell should be routed.
VPN
Stands for "Virtual Private Network". It is "tunneled" through a wide area network WAN such as the Internet. This means the network does not have to be located in one physical location like a LAN. However, by using encryption and other security measures, a VPN can scramble all the data sent through the wide area network, so the network is "virtually" private.
VRAM
Stands for "Video Random Access Memory" and is pronounced "V-RAM.". This is the memory used to store image data that the computer displays; it acts as a buffer between the CPU and the video card.
VRML
Stands for "Virtual Reality Modelling Language.", VRML is a 3D navigation specification, which enables the creation of interactive 3D Web sites.

Terminology begins with  ‘X’, ‘Y’ & ‘Z’
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