Dell PowerEdge 2500SC User Manual
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RAM above 1 MB. Most software that can use it, such as the Windows operating system, requires that extended memory be under the control of an XMM.
external cache memory
A RAM cache using SRAM chips. Because SRAM chips operate at several times the speed of DRAM chips, the microprocessor can retrieve data and instructions
faster from external cache memory than from RAM.
F
Abbreviation for Fahrenheit.
FAT
Acronym for file allocation table. The file system structure used by MS-DOS to organize and keep track of file storage. The Windows NT and OS/2
®
operating
systems can optionally use a FAT file system structure.
FCC
Abbreviation for Federal Communications Commission.
flash memory
A type of EEPROM chip that can be reprogrammed from a utility on diskette while still installed in a system; most EEPROM chips can only be rewritten with special
programming equipment.
format
To prepare a hard-disk drive or diskette for storing files. An unconditional format deletes all data stored on the disk.
ft
Abbreviation for feet.
FTP
Abbreviation for file transfer protocol.
g
Abbreviation for gram(s).
G
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.