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cluster
A group of networked computers that communicate over a
common interface to share disk storage, application programs,
and other computer resources. See also VMScluster system.
CMOS
See complementary metal-oxide semiconductor.
coaxial cable
A two-conductor wire in which one conductor completely wraps
the other, with the two separated by insulation.
command
A request made to the operating system to perform a specific
function, for example, a request to run a program or show the
configuration of a system.
communications
The transmission of digital data from one point (the source) to
another (the receiver).
compact disc
A removable flat circular plate, used in the compact disc drive
on which read-only optical data is stored. A laser optical reader
retrieves this information.
compact disc read-only memory (CDROM)
The removable disc used in the compact disc drive. Data can be
stored on this disc and retrieved from it.
complementary metal-oxide semiconductor (CMOS)
A silicon device that requires very little power and can operate
at very high speeds.
complex instruction set computer (CISC)
A computer that uses an instruction set consisting of a large
number of complex instructions that are managed by microcode.
Contrast with RISC.
Glossary–6