Ah, happy memories of late-night sitting at a teletype (TTY) by the IMP in the PDP-1/PDP-10 Harvard CRCT machine room, hearing the phone ring on the IMP, and a

Ah, happy memories of late-night sitting at a teletype (TTY) by the IMP in the PDP-1/PDP-10 Harvard CRCT machine room, hearing the phone ring on the IMP, and a voice on the other end from BBN HQ asking me to reboot the IMP, as it was hung... I.e, early Arpanet management was manual--no remote power-cycling equipment. (We had some incredibly whizzy 50Kbaud leased lines between the Harvard IMP and the BBN HQ IMP.)