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  2. Computer programming in the punched card era - Wikipedia

    en.wikipedia.org/wiki/Computer_programming_in...

    Punched cards. A punched card is a flexible write-once medium that encodes data, most commonly 80 characters. Groups or "decks" of cards form programs and collections of data. The term is often used interchangeably with punch card, the difference being that an unused card is a "punch card," but once information had been encoded by punching ...

  3. Punched card - Wikipedia

    en.wikipedia.org/wiki/Punched_card

    A 12-row/80-column IBM punched card from the mid-twentieth century. A punched card (also punch card[ 1] or punched-card[ 2]) 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 automated machines . Punched cards were widely used in the 20th century, where ...

  4. Punched card input/output - Wikipedia

    en.wikipedia.org/wiki/Punched_card_input/output

    Punched card input/output. A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form and data from punched cards. A computer card punch is a computer output device that punches holes in cards. Sometimes computer punch card readers were combined with ...

  5. Tabulating machine - Wikipedia

    en.wikipedia.org/wiki/Tabulating_machine

    Hollerith punched card. The tabulating machine was an electromechanical machine designed to assist in summarizing information stored on punched cards. Invented by Herman Hollerith, the machine was developed to help process data for the 1890 U.S. Census. Later models were widely used for business applications such as accounting and inventory ...

  6. IBM 1442 - Wikipedia

    en.wikipedia.org/wiki/IBM_1442

    IBM 2501 reader. IBM 1442 [1] [2] is a combination IBM card reader and card punch. It reads and punches 80-column IBM-format punched cards [3] and is used on the IBM 1440, the IBM 1130, the IBM 1800 [4] and System/360 [5] and is an option on the IBM System/3. [6]

  7. Jacquard machine - Wikipedia

    en.wikipedia.org/wiki/Jacquard_machine

    The Jacquard machine ( French: [ʒakaʁ]) is a device fitted to a loom that simplifies the process of manufacturing textiles with such complex patterns as brocade, damask and matelassé. [3] The resulting ensemble of the loom and Jacquard machine is then called a Jacquard loom.

  8. IBM 604 - Wikipedia

    en.wikipedia.org/wiki/IBM_604

    The IBM 604 Electronic Calculating Punch was the world's first mass-produced electronic calculator along with its predecessor the IBM 603. [1] It was an electronic unit record machine that could perform multiple calculations, including division. It was invented and developed by Ralph Palmer, Jerrier Haddad and Byron Phelps.

  9. Punched card sorter - Wikipedia

    en.wikipedia.org/wiki/Punched_card_sorter

    Punched card sorter. A punched card sorter is a machine for sorting decks of punched cards . Sorting was a major activity in most facilities that processed data on punched cards using unit record equipment. The work flow of many processes required decks of cards to be put into some specific order as determined by the data punched in the cards.

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