Dell Precision 620 - Manual (Page 64)

USB
Universal Serial Bus. A USB connector provides a single connection point for multiple USB-compliant devices, such as mice, keyboards, printers,
and computer speakers. USB devices can also be connected and disconnected while the system is running.
utility
A program used to manage system resources —memory, disk drives, or printers, for example.
UTP
unshielded twisted pair
V
V
volt(s)
VAC
volt(s) alternating current
VCCI
Voluntary Control Council for Interference
VCR
videocassette recorder
VDC
volt(s) direct current
VESA
Video Electronics Standards Association
VGA
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 memory installed
for the video adapter.
VGA feature connector
On some systems with an integrated 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.
video driver
A program that allows graphics-mode application programs and operating systems to display at a chosen resolution with the desired number of
colors. A software package may include some "generic" video drivers. Any additional video drivers may need to match the video adapter installed
in the computer.
video memory