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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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Library Science & Bibliography) a key punch
2. (Library Science & Bibliography) someone who uses a key punch
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
He developed his flagship product ANSYS using a keypuncher and time-shared U.S.
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.
Docs complain that systems are making them into high-end keypunchers and," he notes, "if all they're doing is clinical documentation, they're right." To make CDS clinically relevant, Morrison believes these systems must move beyond the current state of clinical knowledge to "give you information that you don't have."
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. They're equipped with fully loaded Compaq 486 computers with CD-ROM drives and color monitors--and learning along the way how to assemble, disassemble and repair them.