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Citation needed for reason Ctrl-C was chosen |
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This system is usually preserved even in [[Graphical user interface|graphical]] [[terminal emulator]]s. If control-C is used for copy in the graphical environment, an ambiguity arises. Typically an alternate keystroke is assigned to one of the commands, and both appear in the emulator's [[menu (computing)|menu]]s.
As many keyboards and [[computer terminal]]s once directly generated [[ASCII]] code, the choice of control+C overlapped with the [[ASCII]] [[End-of-Text character|end-of-text character]]. This character has a numerical value of three, as "''C''" is the third letter of the alphabet. It was chosen to cause an interrupt as it is otherwise unlikely to be part of a program's interactive interface.{{Citation needed}}
==See also==
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