Dell PowerEdge 600SC - Manual (Page 26)

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.
host adapter
A host adapter implements communication between the system's bus and the controller for a peripheral device. (Hard 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.
Hz
Abbreviation for hertz.
ICES
Abbreviation for Interface-Causing Equipment Standard (in Canada).
ID
Abbreviation for identification.
IDE
Abbreviation for integrated drive electronics.
I/O
Abbreviation for input/output. A 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.
interlacing
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.
interleaving
A technique for storing data more efficiently by arranging parts of one sequence of data so they alternate with parts of another sequence of the same data.
When the data is retrieved, the system puts the sequence back together again.
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.
IRQ
Abbreviation for interrupt request. A signal that data is about to be sent to or received by a peripheral device travels by an IRQ line to the microprocessor.
Each peripheral connection must be assigned an IRQ number. For example, the first serial port in your system (COM1) is assigned to IRQ4 by default. Two
devices can share the same IRQ assignment, but you cannot operate both devices simultaneously.