Vector graphics, image 1) A system of drawing objects using curves and lines. The images are described by line length and direction from an origin to plot lines and build up an image rather than a description of each pixel, as in a bitmap image. Veronica Archie-like client program used to search Gopherspace. VGA Stands for Video Graphics Array. A standard of video adapter developed by IBM that can support a display with a resolution up to 640 x 480 pixels in 256 colours. Superseded by SVGA which is an enhancement to the standard VGA graphics display system that allows resolutions of up to 800 x 600 pixels in 16 million colours. v.32, v.32bis, v.42, v.42bis Error-correction and data compression protocols that make modems communicate more quickly and reliably. vt100 A terminal-type setting; with this setting a network system assumes you are using a VT100 terminal or a computer program that acts like one. Video-conferencing To link two or more computers that can capture and display video and audio in real time so that distant people can talk and see each other. Video digitiser A high speed digital sampling circuit which stores a TV picture in memory so that it can then be processed by a PC. Video for Windows Abbreviated to VFW. A set of software drivers and utilities for Microsoft Windows 3.1 that allows AVI format video files to be played back in a window. Video for Windows supports several compression methods including Microsoft Video 1, Microsoft RLE and Intel's Indeo. Once the Video for Windows driver is installed, Video clips can be played back using the Windows Media Player utility. Video game A game played on a PC that can be either an adventure game where you have to explore an electronic world or an arcade game in which you have to shoot lots of baddies . Video graphics card An expansion card that fits into an expansion slot inside your PC and allows it to display text and graphics and moving video images from an external camera or VCR. Video memory (VRAM) A section of memory fitted on a video adapter that is used as a temporary store for image data sent from the PC's main memory or to store an image as it is built up and before it is displayed on the screen. Virus A computer virus is an insidious piece of software that infects other software and moves from computer to computer when software is transferred. A virus may compound itself once it's inside your computer, thereby destroying software programs and a great deal of data, or it may do other nasty things. Some viruses are benign. Modems can transmit viruses, but illegally copied or "bootleg" diskettes are the most likely carriers. Virus protection software is the best defense, and is available commercially or as freeware/shareware. Virtual Something which does not actually exist, except in an imaginary form in a computer. Virtual image A complete image stored in memory rather than the part of it that is displayed. Virtual memory A large imaginary main memory which is made available to an operating system by storing unused parts of the virtual memory on disk and then transferring these pages into available main memory as and when they are required. Virtual reality Abbreviated to VR. A simulation of a real-life scene or environment by a computer which you can interact with and explore . |