Calculators in space with Sally Ride (1983)

[pier4r]

thank you for the resources! Jurgen I added your blog in the wiki4hp as well.

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update: in another discussion I read that the onboard computer would have take over all the needed backup programs, and only if that one would fail then the 41C would be needed. But in one PDF I read: "Once he decided on the 41, Hart realized he had more than just the handheld scientific calculator NASA had wanted. He started to look for more complex jobs to use it for. The deorbit program is one example. Computation of a deorbit opportunity would have been easy for the onboard computers, but the software for it never was developed."

Thus the onboard computer couldn't provide a backup for all routines if the control station was not reachable (and thus the 41C was the 2nd rather than the 3rd defense line), or did I miss something?