[John Graham-Cumming] might not be the first person to thumb through an old book and find an IBM punched card inside. But he might be the first to actually track down the origin of the cards.

(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 ...

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 ...

The Conversation spotlights Ada Lovelace, a female programming pioneer, more than a century before digital electronic ...

Punch cards have been used to control the operation of machinery from the early nineteenth century, when the Frenchman Joseph Marie Jacquard patented an attachment to a loom in which a series of ...

Punch cards have been used to control the operation of machinery from the early nineteenth century, when the Frenchman Joseph Marie Jacquard patented an attachment to a loom in which a series of ...