From mboxrd@z Thu Jan 1 00:00:00 1970 From: lars at nocrew.org (Lars Brinkhoff) Date: Fri, 31 Jul 2020 19:38:48 +0000 Subject: [COFF] [TUHS] Will pdp 11/04 run unix? In-Reply-To: (Clem Cole's message of "Fri, 31 Jul 2020 14:53:38 -0400") References: <20200731135637.8BC2818C0C0@mercury.lcs.mit.edu> Message-ID: <7wbljvjwzb.fsf@junk.nocrew.org> Clem Cole wrote: > Anyway, I'm pretty sure the [XGP] copies at Stanford (Jan '73), and > MIT (was the 3rd in the series and a little later) also used 11/20s or > maybe 11/15's which was the OEM version of the 20 as it was March '72 > when the CMU XGP was first stood up. Thank you. That's one more "vote" in favour of 11/20. In which case the TV-11 ought to be an 11/10 which was our original guess. I don't think it matters to the software; it should run just as well on either model. I have seen MIT files which describe the Stanford hardware, so it seems their inspiration came from there. The earliest timestamp is from February 1973. I got the impression the Stanford XGP had a PDP-6/10 IO bus interface rather than going through a PDP-11. I'm CC'ing Bruce Baumgart.