Those old enough to have encountered punch cards in their lifetime are probably glad to be rid of their extremely low data density and the propensity of tall stacks to tip over. But obsolete as ...

(1) See loyalty punch card. (2) An early storage medium made of thin cardboard stock that held data as patterns of punched holes. Also called "punched" cards, each of the 80 or 96 columns held one ...

About thirty years ago [H. P. Friedrichs] pulled off a hack that greatly improved the process of programming with punch cards. At the time, his school had just two IBM 029 keypunch machines.

The size of a credit card, a loyalty punch card has a series of boxes that are punched or stamped by the cashier at time of purchase. When all the boxes are filled, the customer is entitled to a ...

New: Batch punch, read and process cards using the Virtual Card Read-Punch! A long, long, long, long time ago Before the chips, before the code Lived a stack, lived a stack I know Lived a relic of ...