Lars et al - Lynn Quam is credited with building the XGP hardware interface to the SAIL PDP-6. A few lines from Version #1 of Quam’s file RESUME[DOC,PDQ] say < quote > Nov. 1972 to Feb. 1973\jFull-time research associate in computer science. Received a grant from the NASA Viking Mission thru Cornell University for the analysis of candidate landing sites for the Viking mission.\. \jDesign and debugging of an interface between a PDP-10 (PDP-6) and and a Xerox Graphics Printer (XGP).\. < Unquote /> Prior to the Stanford interface, Quam built a Nova to XGP interface at Xerox Parc As a part time employee while also working at SAIL. - Bruce p.s. Lynn Quam’s log in code is PDQ > On 31 Jul 2020, at 12:38 PM, Lars Brinkhoff wrote: > > 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. -------------- next part -------------- An HTML attachment was scrubbed... URL: