A punched card is a piece of card stock that stores digital data using punched holes. Punched cards were once common in data processing and the control of ... Punched card input/output · Keypunch · Computer programming
Punched cards, also known as punch cards, dated to the late 18th and early 19th centuries when they were used to “program” cloth-making machinery and looms. In ...
Punch cards, also known as Hollerith cards, or punch tape data storage cards, were once the primary medium for inputting and outputting data to computers.
Each manufacturer developed a distinctive standard punch card. IBM cards had eighty columns of rectangular holes while those of Remington Rand had ninety ...
