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cache memory
A small, high-speed area of memory placed between slower main
memory and the processor. Cache memory increases memory
transfer rates and processor speed. It contains copies of data
recently used by the processor and fetches several bytes of data
from memory in anticipation that the processor will access the
next sequential series of bytes.
caddy
The holder for an RRD42 compact disc.
CD
See compact disc.
CD–ROM
See compact disc read-only memory.
central processing unit (CPU)
The unit of the computer that is responsible for interpreting and
executing instructions.
channel
A path along which digital information can flow in a computer.
Also, the main current path between the source and drain
electrodes in a semiconductor device. See also bus.
checksum
A sum of digits or bits that is used to verify the integrity of a
piece of data.
CI
See computer interconnect.
CISC
Complex instruction set computer. A computer that uses
an instruction set consisting of a large number of complex
instructions that are managed by microcode. Contrast with
RISC.
Glossary–4
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