control character

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control character

[kən′trōl ‚kar·ik·tər]
(computer science)
A character whose occurrence in a particular context initiates, modifies, or stops a control operation in a computer or associated equipment.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

control code

One or more characters used as a command to control a device or a communications session. Control codes may ride along with the data or be in a separate channel. There are countless codes used to control electronic devices. See escape code, return code, control channel and null.

ASCII Control Codes
In this ASCII chart, the leftmost column contains control codes for communications and printers. The rest of the columns are data (although ASCII 32 is also data). See ASCII.
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