as soon as i hit enter i remembered the early 64 bit systems from the 90s PLUS the mainframes we're now emulating in micro systems like https://magpi.raspberrypi.com/articles/pidp-11-review
perhaps a better definition would be 2 out of 3 of ancient, obsolete, legendary?
Ultimately, I want to see this site succeed and grow . So many amazing things I’ve seen and learned about.