Ibm Wiring Boards

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IBM plugboard | IBM 513, I believe. Not sure the purpose of … | Flickr

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The plug-board of an ibm 1401 mainframe computer, 1959 : r/engineeringporn

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$12-minute Mandelbrot: fractals on a 50 year old IBM 1401 mainframe$

12-minute mandelbrot: fractals on a 50 year old ibm 1401 mainframe

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Bad relay: Fixing the card reader for a vintage IBM 1401 mainframe

Computer modules

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