Dell Precision WorkStation 210, Руководство пользователя

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16 Dell Precision WorkStation 210 Mini Tower Systems User’s Guide
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A program that allows graphics-mode ap-
plication 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.
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Most VGA and SVGA video adapters
include memory chips in addition to your
computer’s RAM. The amount of video
memory installed primarily influences the
number of colors that a program can
display (with the appropriate video drivers
and monitor capabilities).
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Video adapters normally support multiple
text and graphics display modes.
Character-based software displays in text
modes that can be defined as
x
columns
by
y
rows of characters. Graphics-based
software displays in graphics modes that
can be defined as
x
horizontal by
y
vertical
pixels by
z
colors.
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Video resolution—800 x 600, for
example—is expressed as the number of
pixels across by the number of pixels up
and down. To display a program at a
specific graphics resolution, you must
install the appropriate video drivers and
your monitor must support the resolution.
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A method for increasing addressable
RAM by using the hard-disk drive. For
example, in a computer with 16 MB of
RAM and 16 MB of virtual memory set up
on the hard-disk drive, the operating
system would manage the system as
though it had 32 MB of physical RAM.
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A self-starting program designed to
inconvenience you. Virus programs have
been known to corrupt the files stored
on a hard-disk drive or to replicate
themselves until a computer or network
runs out of memory.
The most common way that virus
programs move from one computer to
another is via “infected” diskettes, from
which they copy themselves to the
hard-disk drive. To guard against virus
programs, you should do the following:
‡
Periodically run a virus-checking
utility on your computer’s hard-disk
drive
‡
Always run a virus-checking utility
on any diskettes (including
commercially sold software) before
using them
9/6,
Abbreviation for very-large-scale
integration.
9SS
Abbreviation for peak-point voltage.
95$0
Abbreviation for video random-access
memory. Some video adapters use VRAM
chips (or a combination of VRAM and
DRAM) to improve video performance.
VRAM is dual-ported, allowing the video
adapter to update the screen and receive
new image data at the same time.
:
Abbreviation for watt(s).
:+
Abbreviation for watt-hour(s).