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Table Of Contents  CertiGuide to Network+
 9  Glossary

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(Page 1 of 2) Value bar

The area of the System Monitor graph or histogram display that shows last, average, minimum and maximum statistics for the selected counter.

Vector fonts

Fonts rendered from a mathematical model, in which each character is defined as a set of lines drawn between points. Vector fonts can be cleanly scaled to any size or aspect ratio.

VESA

Video Electronics Standards Association. Updated version of EISA, A.K.A. local bus. Popular in early 1990’s.

VGA

Video Graphics Array. An popular video standard, originally created by IBM, which serves as a technical specification for video monitors.

Video for Windows (VfW)

A format developed by Microsoft for storing video and audio information. Files in this format have an .avi extension. AVI files are limited to 320 x 240 resolution at 30 frames per second, neither of which is adequate for full-screen, full-motion video.

Video Port Extensions (VPE)

A DirectDraw extension to support direct hardware connections from a video decoder and autoflipping in the graphics frame buffer. VPE allows the client to negotiate the connection between the MPEG or NTSC decoder and the video port. VPE also allows the client to control effects in the video stream, such as cropping, scaling, and so on.

Virtual Circuit

A temporary connection between two points.

Virtual Device Driver (VxD)

Software for Windows that manages a hardware or software system resource. The middle letter in the abbreviation indicates the type of device; x is used where the type of device is not under discussion.


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