02-01-2021, 10:18 PM
I took Electrical Engineering 1 at UC Berkeley in 1972. We programmed using Fortran IV on a CDC 6400 mainframe which was hidden behind windows off a hallway in the basement of the math building. Most programs were submitted as boxes of punch card decks to the high priests than ran the computer. Late on we were able to use more advanced input devices like teletypes, and eventually Hazeltine cathode ray terminals (which seemed Star Trek like). At times, the turnaround time from input submittal to output retrieval could be measured in days.