I don't know of anyplace that reads old tapes. I got a tape from Bill Plummer long ago, and I have a bunch of my own too. I may still have some old paper tapes, but no system stuff. I did do a PDP1X simulator in Lisp c. 1985, but it's also on large tape somewhere. --Rich ------- [forwarded from WBA. --Rich] Date: Mon, 30 Jan 2017 23:03:36 -0500 Subject: Re: [math-fun] ITS (PDP-10) Lives! -- How about the PDP-1? From: wba <wbackerman@gmail.com> The discussion of the PDP-10 reminds me of another problem that's been sitting in my living room for decades. The MIT RLE PDP-1 timesharing system was the world's first, and for a long time the oldest timesharing system still running. It was the original "spacewar" machine. Some time ago, with the assistance of David Moon, we saved all the system stuff onto tape ("macrotapes" we called them then). Both on the ITS "MC" machine, which had "modern" 9-track tape drives, as opposed to the 7-track drives of AI, ML, and DM, and onto TOPS-20 drives from machine mit-xx. You're supposed to copy stuff over onto modern technology every 10 years or so to prevent disasters like this. But we managed to skip 8-inch floppies, 5-inch floppies, 10-cm floppies, various tape cassettes, CD's, DVD's, and a whole lot of other stuff. Of course I should have attended to this stuff decades ago. Does anyone know of any place on the planet where these tapes could be read? Rich: I believe you got some copies of this when you came to visit a long time ago. You didn't do anything with it by any chance? Bill Ackerman