Punched- card data processing was invented ny Herman Hollerith.

A punch card are cards with punched holes in them that represent data. You feed them into a (usually) large-scale computer that can accept them.

punched card

Wallace John Eckert has written:

'Punched card methods in scientific computation' -- subject(s): Punched card systems, Astronomy, History

Robert Glen Van Ness has written:

'Principles of punched card data processing' -- subject(s): Punched card systems