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  • The Great 202 Jailbreak – Computerphile

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    Before laser-printers, high quality print-outs were the domain of typesetters, expensive and tightly controlled. In 1979 a Bell Labs team reverse engineered one in their summer vacation. Professor Brailsford has the details.

    EXTRA BITS – More on Printing and Typesetting History: https://www.youtube.com/watch?v=HdModNEK_1U
    Mainframes and the Unix Revolution: http://youtu.be/-rPPqm44xLs

    To find out how the 1980 Bell Labs `vacation memo’ was completely rebuilt,
    in 2013, visit:

    http://www.eprg.org/papers/202paper.pdf

    If you want to see the `vacation memo’ itself — in its original scanned-in form and after being rebuilt — then visit:

    http://www.cs.princeton.edu/~bwk/202

    The memorandum gives an outline of how the `reverse engineering’ of the 202 was accomplished.

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    This video was filmed and edited by Sean Riley.

    Computer Science at the University of Nottingham: http://bit.ly/nottscomputer

    Computerphile is a sister project to Brady Haran’s Numberphile. See the full list of Brady’s video projects at: http://bit.ly/bradychannels

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