Dell PowerEdge 1600SC - Manual (Page 28)

A chip that controls the transfer of data between the microprocessor and memory or between the micro-processor and a peripheral device such as a disk
drive or the keyboard.
control panel
The part of the system that contains indicators and controls, such as the power switch, hard drive access indicator, and power indicator.
conventional memory
The first 640 KB of RAM. Conventional memory is found in all systems. Unless they are specially designed, MS-DOS® programs are limited to running in
conventional memory.
coprocessor
A chip that relieves the system's microprocessor of specific processing tasks. A math coprocessor, for example, handles numeric processing. A graphics
coprocessor handles video rendering.
cpi
Abbreviation for characters per inch.
CPU
Abbreviation for central processing unit. See also microprocessor.
dB
Abbreviation for decibel(s).
dBA
Abbreviation for adjusted decibel(s).
DC
Abbreviation for direct current.
DDR
Abbreviation for double data rate.
device driver
A program that allows the operating system or some other program to interface correctly with a peripheral device, such as a printer. Some device drivers—
such as network drivers—must be loaded as memory-resident programs. Others—such as video drivers—must load when you start the program for which they
were designed.
DIMM
Acronym for dual in-line memory module. A small circuit board containing DRAM chips that connects to the system board.
DIN
Acronym for Deutsche Industrie Norm.