Early punch card machines, including keypunches, sorters, collators, interpreters, reproducers, calculators and tabulators. See tabulator and Hollerith machine. THIS DEFINITION IS FOR PERSONAL USE ...

(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 ...