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  2. IBM 602 - Wikipedia

    en.wikipedia.org/wiki/IBM_602

    The IBM 602 Calculating Punch, introduced in 1946, was an electromechanical calculator capable of addition, subtraction, multiplication, and division. The 602 was IBM 's first machine that did division.

  3. IBM 604 - Wikipedia

    en.wikipedia.org/wiki/IBM_604

    IBM 604 Electronic Calculator at NEMO national science museum in Amsterdam. Note plugboard control panel used to program the 604, at bottom.. The IBM 604 Electronic Calculating Punch was the world's first mass-produced electronic calculator along with its predecessor the IBM 603. [1]

  4. IBM 601 - Wikipedia

    en.wikipedia.org/wiki/IBM_601

    The factors could be up to eight decimal digits long. [1] The 601 was introduced in 1931 and was the first IBM machine that could do multiplication. [2] [3] In 1936 W. J. Eckert connected a modified 601 to a 285 tabulator and an 016 duplicating punch through a custom switch he designed and used the combined setup to perform scientific ...

  5. IBM CPC - Wikipedia

    en.wikipedia.org/wiki/IBM_CPC

    The IBM Card-Programmed Electronic Calculator or CPC was announced by IBM in May 1949. Later that year an improved machine, the CPC-II , was also announced. IBM's electronic (vacuum tube) calculators could perform multiple calulations, including division.

  6. List of open-source software for mathematics - Wikipedia

    en.wikipedia.org/wiki/List_of_open-source...

    It was originally known as "HECKE and Manin". After a short while it was renamed SAGE, which stands for ‘’Software of Algebra and Geometry Experimentation’’. Sage 0.1 was released in 2005 and almost a year later Sage 1.0 was released. It already consisted of Pari, GAP, Singular and Maxima with an interface that rivals that of Mathematica.

  7. Eurocard (printed circuit board) - Wikipedia

    en.wikipedia.org/wiki/Eurocard_(printed_circuit...

    Eurocard is an IEEE standard format for printed circuit board (PCB) cards that can be plugged together into a standard chassis which, in turn, can be mounted in a 19-inch rack. The chassis consists of a series of slotted card guides on the top and bottom, into which the cards are slid so they stand on end, like books on a shelf.

  8. Sumlock ANITA calculator - Wikipedia

    en.wikipedia.org/wiki/Sumlock_ANITA_calculator

    ANITA Mk VIII. The ANITA Mark VII and ANITA Mark VIII calculators were launched simultaneously in late 1961 as the world's first all-electronic desktop calculators. [1] [2] Designed and built by the Bell Punch Co. in Britain, and marketed through its Sumlock Comptometer division, they used vacuum tubes and cold-cathode switching tubes in their logic circuits and nixie tubes for their numerical ...

  9. UNIVAC I - Wikipedia

    en.wikipedia.org/wiki/UNIVAC_I

    UNIVAC 1 Computer System – By Allan G. Reiter, formerly of the ERA division of Remington Rand; UNIVAC I & II Simulator Archived 2013-10-11 at the Wayback Machine – By Peter Zilahy Ingerman; Shareware simulator of the UNIVAC I and II. Archived download; Core memory slide show – This slide show contains a photo of a 1951 core memory module ...