IBM AT 5170 Technical Reference page 453

characters per second (cps). A standard unit of measurement for
the speed at which a printer prints.
check key. A group of characters, derived from and appended to
a data item, that can be used to detect errors in the data item
during processing.
clipping. In computer graphics, removing parts of a display
image that lie outside a window.
closed circuit. A continuous unbroken circuit; that is, one in
which current can flow. Contrast with open circuit.
CMOS. Complementary metal oxide semiconductor.
code. (1) A set of unambiguous rules specifying the manner in
which data may be represented in a discrete form. Synonymous
with coding scheme. (2) A set of items, such as abbreviations,
representing the members of another set. (3) To represent data
or a computer program in a symbolic form that can be accepted
"..-....., by a data processor. (4) Loosely, one or more computer
programs, or part of a computer program.
coding scheme. Synonym for code.
collector. An element in a transistor toward which current
flows.
color cone. An arrangement of the visible colors on the surface
of a double-ended cone where lightness varies along the axis of
the cone, and hue varies around the circumference. Lightness
includes both the intensity and saturation of color.
column address strobe (CAS). A signal that latches the column
addresses in a memory chip.
compile. (1) To translate a computer program expressed in a
r--..
problem-oriented language into a computer-oriented language.
(2) To prepare a machine-language program from a computer
program written in another programming language by making use
of the overall logic structure of the program, or generating more
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