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Computing (FOLDOC) dictionary (also found in English - Vietnamese, English - English (Wordnet), )
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character (Or "ctrl", "^") One (or a pair) of modifierkeys found on all modern keyboards. If the control key is
held down while pressing and releasing certain other keys then
a "control character" is generated, e.g. holding control and
hitting "A" generates control-A (ASCII code 1). The ASCII
code for the control character is generally 64 less than that
for the unmodified character.
The control key does not generate any character on its own but
most modern keyboards and operating systems allow a program
to tell whether each of the individual keys on the keyboard
(including modifier keys) is pressed at any time.