RSTS/E 10.1L will run nicely on a PDP-11/23+. I do it all the time. That is what PLUTO:: is. -Steve -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Cory Smelosky Sent: Sunday, February 16, 2014 21:22 To: hecnet at Update.UU.SE Subject: Re: RSTS/E tapes, was Re: [HECnet] two dumb RSX questions On Sun, 16 Feb 2014, Dave McGuire wrote: On 02/16/2014 09:15 PM, Cory Smelosky wrote: What're the requirements for RSTS/E 10.1? I think I managed to fit it in 40M very carefully in simh once... It will not fit on a single RL02, unfortunately. ;) I should get that UDA50, order a replacement drive, pickup the PSU and run it on the 11/44, then. ;) I'll find another solution for the 11/23+. The {11/03,11/23} can be RT-11 or RSX-11M+. It fits nicely on am RM02/RM03 (~70MB), with languages etc. I don't know what the strict requirements are for the OS itself, offhand. Ahh. -Dave -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects