unix developed on 11/20 with 20 on panel or machine that just said pdp/11?

Warren Toomey wkt at tuhs.org
Fri Jun 21 18:30:37 CDT 2019


According to this page that Dennis Ritchie wrote, the original PDP-11
they used was indeed an 11/20 but it was before there were PDP-11 model
numbers:

https://www.bell-labs.com/usr/dmr/www/picture.html

And, of course, the PDP-7 Unix development came before the PDP-11 version :)

Cheers, Warren


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