Dell PowerEdge 2300 User's Guide - Page 153

C, D, E, F, 10. In text, hexadecimal num

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Abbreviation for gram(s). Abbreviation for gravities. Abbreviation for gigabyte(s). A gigabyte equals 1,024 megabytes or 1,073,741,824 bytes. See coprocessor. A host adapter implements communication between the computer's bus and the controller for a peripheral. (Hard-disk drive controller subsystems include integrated host adapter circuitry.) To add a SCSI expansion bus to your system, you must install the appropriate host adapter. Abbreviation for the High Performance File System option in the Windows NT operating system. See video mode. Abbreviation for hertz. Acronym for graphical user interface. Abbreviation for hexadecimal. A base-16 numbering system, often used in programming to identify addresses in the computer's RAM and I/O memory addresses for devices. The sequence of decimal numbers from 0 through 16, for example, is expressed in hexadecimal notation as: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, 10. In text, hexadecimal numbers are often followed by h or preceded by 0x. MS-DOS conventional memory-the first 640 KB of memory addresses-is from 00000h to 9FFFFh; the MS-DOS upper memory area-memory addresses between 640 KB and 1 MB-is from A0000h to FFFFFh. Abbreviation for input/output. The keyboard and a printer, for example, are I/O devices. In general, I/O activity can be differentiated from computational activity. For example, when a program sends a document to the printer, it is engaging in I/O activity; when the program sorts a list of terms, it is engaging in computational activity. Abbreviation for identification. A technique for increasing video resolution by only updating alternate horizontal lines on the screen. Because interlacing can result in noticeable screen flicker, most users prefer noninterlaced video adapter resolutions. A metal plate with metal pegs or ribs that help dissipate heat. Some microprocessors include a heat sink. Abbreviation for high memory area. The first 64 KB of extended memory above 1 MB. A memory manager that conforms to the XMS can make the HMA a direct extension of conventional memory. See also conventional memory, memory manager, upper memory area, and XMM. An instruction and data cache built in to the microprocessor. The Pentium microprocessor, for example, includes a 16-KB internal cache, which is set up as an 8-KB read-only instruction cache and an 8-KB read/write data cache. Acronym for internetwork packet exchange. Glossary 7

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Glossary
7
J
Abbreviation for gram(s).
*
Abbreviation for gravities.
*%
Abbreviation for gigabyte(s). A gigabyte
equals 1,024 megabytes or
1,073,741,824 bytes.
JUDSKLFV±FRSURFHVVRU
See
coprocessor
.
JUDSKLFV±PRGH
See
video mode
.
*8,
Acronym for graphical user interface.
K
Abbreviation for hexadecimal. A base-16
numbering system, often used in pro-
gramming to identify addresses in the
computer’s RAM and I/O memory ad-
dresses for devices. The sequence of
decimal numbers from 0 through 16, for
example, is expressed in hexadecimal no-
tation as: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B,
C, D, E, F, 10. In text, hexadecimal num-
bers are often followed by
h
or preceded
by
0x
. MS-DOS conventional memory—the
first 640 KB of memory addresses—is from
00000h to 9FFFFh; the MS-DOS upper
memory area—memory addresses be-
tween 640 KB and 1 MB—is from A0000h
to FFFFFh.
KHDW±VLQN
A metal plate with metal pegs or ribs
that help dissipate heat. Some micro-
processors include a heat sink.
+0$
Abbreviation for high memory area. The
first 64 KB of extended memory above
1 MB. A memory manager that conforms
to the XMS can make the HMA a direct
extension of conventional memory. See
also
conventional memory
,
memory
manager
,
upper memory area
, and
XMM
.
KRVW±DGDSWHU
A host adapter implements communica-
tion between the computer’s bus and the
controller for a peripheral. (Hard-disk drive
controller subsystems include integrated
host adapter circuitry.) To add a SCSI ex-
pansion bus to your system, you must
install the appropriate host adapter.
+3)6
Abbreviation for the High Performance
File System option in the Windows NT
operating system.
+]
Abbreviation for hertz.
,½2
Abbreviation for input/output. The key-
board and a printer, for example, are I/O
devices. In general, I/O activity can be dif-
ferentiated from computational activity.
For example, when a program sends a
document to the printer, it is engaging in
I/O activity; when the program sorts a list
of terms, it is engaging in computational
activity.
,’
Abbreviation for identification.
LQWHUODFLQJ
A technique for increasing video resolu-
tion by only updating alternate horizontal
lines on the screen. Because interlacing
can result in noticeable screen flicker,
most users prefer noninterlaced video
adapter resolutions.
LQWHUQDO±PLFURSURFHVVRU±FDFKH
An instruction and data cache built in to
the microprocessor. The Pentium micro-
processor, for example, includes a 16-KB
internal cache, which is set up as an 8-KB
read-only instruction cache and an 8-KB
read/write data cache.
,3;
Acronym for internetwork packet
exchange.