What is punched card?

Punched Card

A punched card, punch card, IBM card, or Hollerith card is a piece of stiff paper that contains digital information represented by the presence or absence of holes in predefined positions.

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Some articles on punched card:

Voting Machine - Vote-recording Technologies - Document-based Ballot Voting Systems - Punched Card
... Punched card systems employ a card (or cards) and a small clipboard-sized device for recording votes ... Voters punch holes in the cards (with a supplied punch device) opposite their candidate or ballot issue choice ... The idea of voting by punching holes on paper or cards originated in the 1890s and inventors continued to explore this in the years that followed ...
Fredrik Rosing Bull - The Bull Machine
... 'ordering, recording and adding machine' using punched card, and once he saw the success, undertook the production of new copies of his T-30 machine adding improvements beyond ... Bull machine used punched card of 45 columns, with round holes and a rotating adder ... better than its competition, Hollerith and Powers, through the mechanism of punched card pre-selection ...
Booting - History - Pre Integrated-circuit-ROM Examples - First Commercial Computers
... be used to load the contents of a punch card or other input media that contained a bootstrap program by pressing a single button ... had a "Load" button that initiated reading of the first 36-bit word into main memory from a punched card in a card reader, a magnetic tape in a tape drive, or a magnetic. 1958) used a card reader to load a program from a punched card ...
Punched Card - Card Handling Equipment
... Creation and processing of punched cards was handled by a variety of devices, including Punched card input/output Keypunches Unit record equipment Voting machines ...
Fredrik Rosing Bull
... was an Information technology pioneer, known for his works on improved punched card machines ... Here is where his interest for the punched card machines technology started, and took over the task of developing his own punched card machine ...

Famous quotes containing the word card:

    In the game of “Whist for two,” usually called “Correspondence,” the lady plays what card she likes: the gentleman simply follows suit. If she leads with “Queen of Diamonds,” however, he may, if he likes, offer the “Ace of Hearts”: and, if she plays “Queen of Hearts,” and he happens to have no Heart left, he usually plays “Knave of Clubs.”
    Lewis Carroll [Charles Lutwidge Dodgson] (1832–1898)