Space Scopes
Margaret Hamilton's Apollo 11 flight software threw a 1202 alarm three minutes before Armstrong landed, and the priority-scheduling logic she had insisted on including let the guidance computer drop lower tasks and keep flying while a radar switch flooded it with data
Three minutes before Eagle touched down on 20 July 1969, the Apollo Guidance Computer began flashing a 1202 alarm as a rendezvous radar switch flooded it with unexpected data. Margaret Hamilton's priority-scheduling architecture shed low-priority jobs and kept the landing functions alive — five times in four minutes.
