Dell Precision WorkStation 210, Руководство пользователя

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Glossary 11
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A single point on a video display. Pixels
are arranged in rows and columns to
create an image. A video resolution, such
as 640 x 480, is expressed as the number
of pixels across by the number of pixels
up and down.
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An industry-standard specification that
makes it easier to add hardware devices
to personal computers. Plug and Play
provides automatic installation and
configuration, compatibility with existing
hardware, and dynamic support of mobile
computing environments.
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Acronym for power-on self-test. Before
the operating system loads when you turn
on your computer, the POST tests various
system components such as RAM, the
disk drives, and the keyboard.
SSP
Abbreviation for pages per minute.
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Abbreviation for plastic quad flat pack, a
type of microprocessor socket in which
the microprocessor chip is permanently
mounted.
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The Program Diskette Maker allows you
to create program diskette sets, or master
copies, of software that Dell installed on
your computer system. It is essential that
you create these diskette sets as soon as
possible. You may need a set of master
diskettes if you ever experience problems
with your hard-disk drive and need to
reinstall your Dell-installed software. If
your system includes Dell-installed
software, you can select this program
from the Dell Accessories program folder.
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The set of diskettes from which you can
perform a complete installation of an
operating system or application program.
When you reconfigure a program, you
often need its program diskette set.
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An operating mode supported by 80286
or higher microprocessors, protected
mode allows operating systems to
implement:
‡
A memory address space of 16 MB
(80286 microprocessor) to 4 GB
(Intel386 or higher microprocessor)
‡
Multitasking
‡
Virtual memory, a method for
increasing addressable memory by
using the hard-disk drive
The Windows NT, OS/2, and UNIX ® 32-bit
operating systems run in protected mode.
MS-DOS cannot run in protected mode;
however, some programs that you can
start from MS-DOS, such as the Windows
operating system, are able to put the
computer into protected mode.
36
Abbreviation for Personal System/2.
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Acronym for redundant array of
inexpensive disks.
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Acronym for random-access memory.
The computer’s primary temporary
storage area for program instructions and
data. Each location in RAM is identified by
a number called a
memory address
. Any
information stored in RAM is lost when
you turn off your computer.
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Acronym for random-access memory
digital-to-analog converter.
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A read-only file is one that you are
prohibited from editing or deleting. A file
can have read-only status if:
‡
Its read-only attribute is enabled.
‡
It resides on a physically
write-protected diskette or on a
diskette in a write-protected drive.