follow Dictionary.com

Know these essential literary terms?

chadless keypunch

chadless keypunch in Technology

hardware
A card punch which cut little U-shapes in punched cards, rather than punching out a circle or rectangle. The U's made a hole when folded back.
One of the Jargon File's correspondents believed that the term "chad" derived from the Chadless keypunch. Obviously, if the Chadless keypunch didn't make them, then the stuff that other keypunches made had to be "chad". The assertion that the keypunch was named after its inventor is not supported by any record in US or UK patents or surname references.
(2000-11-22)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
Cite This Source

Word of the Day

Word Value for chadless

0
0
Scrabble Words With Friends

Nearby words for chadless keypunch