Thread:Mainframebabe/@comment-31592479-20170530160727/@comment-29326205-20170605192002

I'm pretty old. We might be the same age, even. I programmed an IBM 1620. I even remember flipping the switches on the front panel of another computer (PDP-11 maybe?) to enter instructions and the resulting 'program' was printed on paper tape.The university's mainframe was accessed by 300 baud dial-up modems. I think they were finally upgrading to 1200 baud the year I graduated. Children today will never know the joys of whistling the 'Ack' tone in response to the modem's 'Enq' tone.