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  2. Computer programming in the punched card era - Wikipedia

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

    A single program deck, with individual subroutines marked. The markings show the effects of editing, as cards are replaced or reordered. Many early programming languages, including FORTRAN, COBOL and the various IBM assembler languages, used only the first 72 columns of a card – a tradition that traces back to the IBM 711 card reader used on the IBM 704/709/7090/7094 series (especially the ...

  3. Punched card input/output - Wikipedia

    en.wikipedia.org/wiki/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 computer card punches and ...

  4. Punched card - Wikipedia

    en.wikipedia.org/wiki/Punched_card

    A deck of punched cards comprising a computer program. The red diagonal line is a visual aid to keep the deck sorted. [32] The terms punched card, punch card, and punchcard were all commonly used, as were IBM card and Hollerith card (after Herman Hollerith). [1]

  5. IBM 650 - Wikipedia

    en.wikipedia.org/wiki/IBM_650

    Because of its relatively low cost and ease of programming, the 650 was used to pioneer a wide variety of applications, from modeling submarine crew performance [10] to teaching high school and college students computer programming. The IBM 650 became highly popular in universities, where a generation of students first learned programming.

  6. IBM 3505 - Wikipedia

    en.wikipedia.org/wiki/IBM_3505

    IBM 3525 Card Punch. The 3525 attaches to a computer through a control unit in the 3505. It has an input hopper with a capacity of 1200 cards, and two output stackers, each holding up to 1200 cards. Cards may be selected into either stacker under program control. A full stacker stops the punch, awaiting operator intervention.

  7. Analytical engine - Wikipedia

    en.wikipedia.org/wiki/Analytical_Engine

    Two types of punched cards used to program the machine. Foreground: 'operational cards', for inputting instructions ; background: 'variable cards', for inputting data Babbage's first attempt at a mechanical computing device, the Difference Engine , was a special-purpose machine designed to tabulate logarithms and trigonometric functions by ...

  8. Portal:Computer programming/Selected article/5 - Wikipedia

    en.wikipedia.org/wiki/Portal:Computer...

    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. Now an obsolete recording medium , punched cards were widely used throughout the 19th century for controlling textile looms and in the late 19th and early ...

  9. Gamification of learning - Wikipedia

    en.wikipedia.org/wiki/Gamification_of_learning

    Based on this patent, Pask and Robin McKinnon-Wood built SAKI – the Self-Adaptive Keyboard Instructor – for teaching students how to use the Hollerith key punch, a data entry device using punched cards. The punched card was common until the 1970s and there was huge demand for skilled operators. SAKI treats the student as a "black box ...