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caddy
The holder for the compact disc used in a CDROM drive.
CD
See compact disc.
CDROM
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.
CISC
See complex instruction set computer.
client
A piece of hardware or software that obtains a specific set of
services from a server.
client-server computing
An approach to computing that enables personal computer and
workstation users—the ‘‘clients’’—to work cooperatively with
software programs stored on a mainframe or minicomputer—the
‘‘server.’’
clock
A signal used to synchronize the circuits in a computer system.
Glossary–5