Unformatted text preview: ame: In a program, the name assigned to a data field that can assume
any field that can assume any of a given set of values.
Vector graphics: Graphic objects composed of patterns of lines, points, circles,
arcs, and other geometric shapes (vectors) which can be easily represented by few
Very Large Scale Integration (VLSI): An electronic circuit with about 10,000
transistors fabricated in a single silicon chip. Very Small Aperture Terminals (VSATs): Smaller dish antennas having lower
power transmitters and receivers which can be installed at users' sites, it enables a
large number of users to benefit from satellite communication.
Video conferencing: A system in which persons sitting at CRT screens see and
talk to each other via a computer-communications network. It saves traveling cost
and the valuable time of executives.
Video Display Terminal (VDT): A monitor and a keyboard used together as both
an input and an output device. Also known as terminal.
Video Graphics Array (VGA): An add-on board that enables the interfacing of
very high-resolution monitors to a computer system.
Virtual classroom: A learning environment created by using computing
technologies. Students can join and leave the learning environment at their own
convenient time and can learn at their own pace of learning.
Virtual machine: The concept of adding the operating system layer on top of the
bare hardware to manage all parts of the system, and present the users with an
interface that is easier to program and use.
Virtual memory: A memory management scheme that allows the execution of
processes that might not be completely loaded in the main memory. The three
basic concepts used for the realization of virtual memory are on-line secondary
storage, swapping and demand paging.
Virtual reality: A technology using which the user can put a pair of goggles and
glove and tour a three-dimensional world that exists only in the computer, but
appears realistic to the user.
Virtual shop: A shopping environment created by using computing technologies. It
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This document was uploaded on 04/07/2014.
- Spring '14