- Value added reseller. A company that resells hardware and software
packages to developers and/or end users.
- Vertical blanking interval. The time interval between television fields
needed for the scanning gun to move from the bottom to the top of the screen
for the start of the next field.
- In Windows, a 32-bit protected-mode cache driver.
- In Windows, a 32-bit protected-mode communications driver.
- Video cassette recorder. An analog magnetic recording and playback
machine. Usually used for recording and viewing full-motion video; also useful
as a data backup device.
- Virtual display driver.
- vector graphics
- Images defined by sets of straight lines, defined in turn by the locations
of the end points.
- Video Electronics Standards Association. The governing body that
establishes standards for the video and graphics portions of the electronics
- Video graphics array. A video adapter that supports 640x480-pixels color
resolution. Video display standard for boot devices under Windows operating
systems. Provides medium-resolution text and graphics.
- video codecs
- Full-color video. Requires 3 bytes per pixel, at 640x480 resolution;
equals nearly 1 MB of digital data per frame. This means that a developer
could easily use 1 GB of hard-disk space by storing less than one minute of
uncompressed digital video information.
- Virtual machine. Software that mimics the performance of a hardware
device. For example, a software program that allows applications written for
an Intel processor to be run on a Motorola chip interprets the Intel machine
instructions, becoming a virtual Intel machine.
- Video Port Extensions. Extensions to the DirectDraw API to control the
video stream from the video port within the context of VGA memory.
- Virtual Device Driver. A device driver that runs at the privileged
ring 0 protected mode of the microprocessor. Can extend the services of the
Windows kernel, supervise hardware operations, or perform both functions. Such
driver files are usually named according to the scheme VxD, where x refers to
the device or service supported.