Dell Precision WorkStation 210, Руководство пользователя

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Glossary 15
836
Abbreviation for uninterruptible power
supply. A battery-powered unit that
automatically supplies power to your
computer in the event of an electrical
failure.
86%
Abbreviation for 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.
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A program used to manage system
resources—memory, disk drives, or
printers, for example.
873
Abbreviation for unshielded twisted pair.
9
Abbreviation for volt(s).
9$&
Abbreviation for volt(s) alternating
current.
9&&,
Abbreviation for Voluntary Control Council
for Interference.
9&5
Abbreviation for video cassette recorder.
9'&
Abbreviation for volt(s) direct current.
9(6$
Acronym for Video Electronics Standards
Association.
9*$
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.
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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
.
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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.