https://bsdimp.blogspot.com/2019/10/video-footage-of-first-pdp-7-to-run-unix.html https://bsdimp.blogspot.com/2019/10/video-footage-of-first-p... has some furth

https://bsdimp.blogspot.com/2019/10/video-footage-of-first-pdp-7-to-run-unix.html https://bsdimp.blogspot.com/2019/10/video-footage-of-first-p... has some further speculation... Footage of the PDP-7 that ken would later use to create Unix.