Keypunch definitions

kē'pŭnch'
A keyboard machine used to punch holes in cards or tapes for data-processing systems.
noun
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To process on or use such a keyboard machine.
verb
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To punch holes in a punch card. Although punch cards are obsolete, some people still say "keys are punched" on a keyboard.
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(computing) A device, in which one or a combination of keys are pressed to punch holes in punched cards or paper tape that correspond to a particular character.
noun
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(computing) An electric machine with a keyboard that has the same function.
noun
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To use such a device or machine.
verb
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