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  2. Time clock - Wikipedia

    en.wikipedia.org/wiki/Time_clock

    A time clock, sometimes known as a clock card machine, punch clock, or time recorder, is a device that records start and end times for hourly employees (or those on flexi-time) at a place of business. In mechanical time clocks, this was accomplished by inserting a heavy paper card, called a time card

  3. IBM 604 - Wikipedia

    en.wikipedia.org/wiki/IBM_604

    It could read a punched card from a deck, do some calculations based on the wiring of its plugboard, and punch results onto the same card. A separate IBM 521 Card Read/Punch processed the cards and had its own plugboard which selected the columns to be read and those to be punched. [6] The 604 and a modified version, the 605, were used as ...

  4. 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 ...

  5. IBM CPC - Wikipedia

    en.wikipedia.org/wiki/IBM_CPC

    The card-programmed calculators used fields on punched cards not to specify the actual operations to be performed on data, but which "microprogram" hard-coded onto the plugboard of the IBM 604 or 605 calculator machine; a set of cards produced different results when used with different plugboards. The units could be configured to retain up to ...

  6. Punched card sorter - Wikipedia

    en.wikipedia.org/wiki/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.

  7. Unit record equipment - Wikipedia

    en.wikipedia.org/wiki/Unit_record_equipment

    1949: The IBM 024 Card Punch, 026 Printing Card Punch, 082 Sorter, 403 Accounting machine, 407 Accounting machine, and Card Programmed Calculator (CPC) introduced. [52] 1952: Bull Gamma 3 introduced. [53] [54] An electronic calculator with delay-line memory, programmed by a connection panel, that was connected to a tabulator or card reader ...

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