3 ms·
Hardware Boot Selection Switch
- cratermoon 5y agoDecades ago, in one of my first real jobs, I was a "computer operator" for a summer. Mostly it consisted of mounting and unmounting 9-track tapes, pulling pinfeed output off the lineprinter, collating and stacking it and putting it out on the output shelves for the programmers. However, once in a while it required rebooting the computer, a CDC Cyber/170. There was a series of toggle switches inside the main cabinet that, depending on how there were set, would change the boot device. It could boot from disk, tape, or in extremis the card reader.