Also, key punch. Also called card punch. a machine, operated by a keyboard, for coding information by punching holes in cards or paper tape in specified patterns.
verb (used with object)
to punch holes in (a punch card or paper tape), using a keypunch.
to insert (data) into a computer by means of a keypunch: to keypunch code numbers.

1930–35; key1 + punch1

keypuncher, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Example sentences
They also did not have a process to mitigate keypunch errors.
In addition, this would significantly reduce the volume of tax returns with keypunch errors that would require correction.
The con artist that claimed to be a telemarketer may defend the error as unintentional keypunch errors.
It reduces department processing costs and reduces the inconvenience caused to some taxpayers through keypunch errors.
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