AP-101 Space Shuttle Computers       

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AP-101 Space Shuttle Computers - overview


Other Accomplishment | 1966 - 1992

IBM researchers: TBD

Where the work was done: TBD

What we accomplishedIBM produced the avionics computer used to control the Space Shuttle and a variety of other aircraft.

Adapted from writeups by NASA and Wikipedia: The AP-101 was a derivative of the 4Pi introduced by IBM in 1966.  It used the basic instruction set architecture from IBM's mainframe System/360. The AP-101 processed 480,000 instructions per second. Five AP-101s were installed aboard each shuttle. The AP-101 was also used in a broad set of US military aircraft, including the B-52 and B-1 bombers and the F-15 fighter.

Related links: NASA Writeup; Wikipedia entry

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Image credit: By Michael L. Umbricht - Own work, CC BY-SA 3.0.