Chadless keypunch

(hardware)A card punch which cut little U-shapes inpunched cards, rather than punching out a circle orrectangle. The U's made a hole when folded back.

One of the Jargon File's correspondents believed that theterm "chad" derived from the Chadless keypunch. Obviously,if the Chadless keypunch didn't make them, then the stuff thatother keypunches made had to be "chad". The assertion thatthe keypunch was named after its inventor is not supported byany record in US or UK patents or surname references.

单词	chadless keypunch
释义	Chadless keypunch Chadless keypunch (hardware)A card punch which cut little U-shapes inpunched cards, rather than punching out a circle orrectangle. The U's made a hole when folded back. One of the Jargon File's correspondents believed that theterm "chad" derived from the Chadless keypunch. Obviously,if the Chadless keypunch didn't make them, then the stuff thatother keypunches made had to be "chad". The assertion thatthe keypunch was named after its inventor is not supported byany record in US or UK patents or surname references.
随便看	take (one) for a fool take (one) for an idiot take (one) for a ride take (one) for a sleigh ride take (one) for dead take one for the road take one for the team take (one) in tow take one in tow take one look take one look at take one look (at someone or something) take one look at someone/something take one medicine take (one) off guard take one off guard take one off-guard take one off hands take (one) out of (oneself) take (one) out to dinner take (one) round take one round take ones take-ones take (one's) ball and go home