User's Manual

260 Glossary
variable
A component of a managed object. A temperature probe, for example, has a
variable to describe its capabilities, its health or status, and certain indexes that
you can use to help you locate the right temperature probe.
VCCI
Abbreviation for Voluntary Control Council for Interference.
VDC
Abbreviation for volt(s) direct current.
VESA
Acronym for Video Electronics Standards Association.
VGA
Abbreviation for video graphics array. VGA and SVGA are video standards for video
adapters with greater resolution and color display capabilities than previous standards.
To display a program at a specific resolution, you must install the appropriate video
drivers and your monitor must support the resolution. Similarly, the number of colors
that a program can display depends on the capabilities of the monitor, the video driver,
and the amount of video memory installed for the video adapter.
VGA feature connector
On some systems with a built-in VGA video adapter, a VGA feature connector allows
you to add an enhancement adapter, such as a video accelerator, to your computer.
A VGA feature connector can also be called a
VGA pass-through connector
.
video adapter
The logical circuitry that provides—in combination with the monitor—your
computer's video capabilities. A video adapter may support more or fewer features
than a specific monitor offers. Typically, a video adapter comes with video drivers
for displaying popular application programs and operating systems in a variety of
video modes.
On some Dell computers, a video adapter is integrated into the system board.
Also available are many video adapter cards that plug into an expansion-card
connector.
Video adapters often include memory separate from RAM on the system board.
The amount of video memory, along with the adapter's video drivers, may affect
the number of colors that can be simultaneously displayed. Video adapters can
also include their own coprocessor for faster graphics rendering.