Manual

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.
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control panel
The part of the system that contains indicators and controls, such as the power switch, hard drive access indicator, and power indicator.
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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.
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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.
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cpi
Abbreviation for characters per inch.
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CPU
Abbreviation for central processing unit. See also microprocessor.
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dB
Abbreviation for decibel(s).
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dBA
Abbreviation for adjusted decibel(s).
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DC
Abbreviation for direct current.
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DDR
Abbreviation for double data rate.
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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.
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DIMM
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Acronym for dual in-line memory module. A small circuit board containing DRAM chips that connects to the system board.
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DIN
Acronym for Deutsche Industrie Norm.
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