Key punch

What is Key punch?

Key punch definition and meaning on Dictionary terms:
noun
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.

 

reference: https://www.dictionary.com/browse/key–punch

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