Also found in: Encyclopedia.


A keyboard machine used to punch holes in cards or tapes for data-processing systems.
intr. & tr.v. key·punched, key·punch·ing, key·punch·es
To process on or use such a keyboard machine.

key′punch′er n.


1. (Library Science & Bibliography) a key punch
2. (Library Science & Bibliography) someone who uses a key punch
References in periodicals archive ?
The quiet, unassuming keypuncher at the office may become a tiger on the streets as be assumes the role of team leader and corporate ambassador to civil authorities.
This not only assists the keypuncher, but allows those requesting the data entry to more easily check their work for completeness, field size and coding.
Remember that a separate check for each tax lot bill will help keypunchers apply the money appropriately.
The Edgewood trainees are being accorded more respect than many assembly-line data keypunchers.