Dell PowerEdge 7150 - Manual (Page 27)

Abbreviation for gram(s).
G
Abbreviation for gravities.
GB
Abbreviation for gigabyte(s). A gigabyte equals 1024 megabytes or 1,073,741,824 bytes.
graphics coprocessor
See coprocessor.
graphics mode
See video mode.
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 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.
heat sink
A metal plate with metal pegs or ribs that help dissipate heat. Some microprocessors include a heat sink.
See also conventional memory, memory manager, upper memory area, and XMM.
host adapter
A host adapter implements communication between the system'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.
ICMB
Abbreviation for inter-chassis management bus.
I/O
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.
ID
Abbreviation for identification.
IDE
Integrated drive electronics.
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.
internal microprocessor cache
An instruction and data cache built into 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.
IP
Acronym for Internet Protocol.
IRQ
Abbreviation for interrupt request. A signal that data is about to be sent to or received by a peripheral travels by an IRQ line to the microprocessor. Each peripheral