Also found in: Encyclopedia, Wikipedia.
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.
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. a machine, operated by a keyboard, for coding information by punching holes in cards or paper tape in specified patterns.v.t.
2. to punch holes in (a punch card or paper tape) using a keypunch.
3. to insert (data) into a computer by means of a keypunch.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.