Dell PowerEdge 500SC - Manual (Page 29)

Abbreviation for gravities.
GB
Abbreviation for gigabyte(s). A gigabyte equals 1,024 megabytes or 1,073,741,824 bytes.
graphics coprocessor
See coprocessor.
graphics mode
A video mode that can be defined as x horizontal by y vertical pixels by z colors.
group
As it relates to DMI, a group is a data structure that defines common information, or attributes, about a manageable component.
GUI
Acronym for graphical user interface.
h
Abbreviation for hexadecimal. A base-16 numbering system, often used in programming to identify addresses in the system'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.
heat sink
A metal plate with metal pegs or ribs that help dissipate heat. Most microprocessors include a heat sink.
HMA
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 upper memory area and XMM.
host adapter
A host adapter implements communication between the system's bus and the controller for a peripheral device. (Hard-disk drive controller subsystems include
integrated host adapter circuitry.) To add a SCSI expansion bus to your system, you must install or connect the appropriate host adapter.
HPFS
Abbreviation for the High Performance File System option in the OS/2 and Windows NT operating systems.
Hz
Abbreviation for hertz.
ICES
Abbreviation for Interface-Causing Equipment Standard (in Canada).
ICU
Abbreviation for ISA Configuration Utility.
I/O
Abbreviation for input/output. The keyboard is an input device, and a printer is an output device. 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 output activity; when the program sorts a list of terms,
it is engaging in computational activity.
ID
Abbreviation for identification.
interlacing
A technique for increasing video resolution by only up-dating alternate horizontal lines on the screen. Because interlacing can result in noticeable screen
flicker, most users prefer noninterlaced video adapter resolutions.
internal microprocessor cache
An instruction and data cache built in to the microprocessor. The Intel Pentium microprocessor 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.
IPX
Acronym for internetwork packet exchange.