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 ...

Paper documents are printed with OCR fonts for scanning. Invoices and inventory stock cards are examples. Years ago, punch cards were commonly used for turnaround documents. THIS DEFINITION IS FOR ...

A punch-card data entry machine. A deck of blank cards was placed into a hopper, and, upon operator command, the machine fed one card to a punch station. As characters were typed, a series of dies ...

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 ...