punch card

a card having holes punched in specific positions and patterns so as to represent data to be stored or processed mechanically, electrically, or photoelectrically.
Also, punchcard, punched card.


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World English Dictionary
punched card or esp (US) punch card
Sometimes shortened to: card (formerly) a card on which data can be coded in the form of punched holes. In computing, there were usually 80 columns and 12 rows, each column containing a pattern of holes representing one character
punch card or esp (US) punch card

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Computing Dictionary

punch card definition

punched card

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Example sentences
Previously, commands had to be fed into a computer in batches, usually via a punch card or paper tape.
Since punch card data have a much larger sample size, estimates made from these data will be more accurate and precise.
In many minds, the punch card system of voting was discredited.
The appropriate codes are entered in a master punch card that is used in processing future tax returns.
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