Re: PDP-11 Unix V7M-11 V1.0 under SIMH
> On Oct 4, 2021, at 9:47 PM, Ethan Dicks via cctalk > wrote: > > On Mon, Oct 4, 2021 at 7:42 PM Chris Zach via cctalk > wrote: >> Oddly enough I do have a copy of Pro/Venix 1.0 that would fit on a >> Pro/350 with a 5mb hard drive. Slow as *dirt*, you could literally watch >> the hard drive seek back and forth with the little arm on the side. But >> it did work. > > I have one of those. I brought it to VCF East two years ago for the > Mother of all UNIX Demos. I think there's 300-400KB free on that > RD50. I wonder if it supports at least an RD51, since those arrived together with the RD50. > It is indeed slow as dirt. Chances are it would be noticeably faster with an MFM emulator connected. paul
Re: PDP-11 Unix V7M-11 V1.0 under SIMH
On 10/4/2021 6:26 PM, Tony Nicholson via cctalk wrote: *Neat*! I was thinking of trying to lay this down on a real 11/23+ here at the house, then realized I didn't have two RD51's. Can it gen on an RD53 by chance, I could upload one of those to a disk in a weekend or immediately with the Dave Gesswin emulator (which I need to return but we're just about to pull out those big Perqs) Chris, I doubt you'll be able to use anything other than a RD51 drive - as this ancient V7M doesn't yet support newer drive types. You might be able to put some of the system files on an RL02 - but I haven't confirmed there's a RL02 boot loader on this kit. Back in 1983 the PDP-11/23-PLUS was a relatively *new* machine. There's later versions of Ultrix-11 (V2 and later) that added support for the 11/73 and bigger drives - look on the Unix Heritage Society site under Unix Archive. There's a downloadable installation tape for Ultrix-11 there. https://www.tuhs.org Tony Once installed, one ought to be able to gen a system for other devices, at least for an RL01/RL02, but perhaps not for RD series beyond the RD51 without The drivers ought to be there for RL01, RL02, RK06, RK07, RP02/3/4/5/6, RM02/3/5, RA60 and RA80/81 and more, according to the installation manual - you just have to do a sysgen. Might be good to do the contemplated work under SimH first, of course. For later RQDX controllers, though, you presumably would need to change the driver. JRJ
Re: PDP-11 Unix V7M-11 V1.0 under SIMH
On Tue, Oct 5, 2021 at 7:04 AM Paul Koning via cctalk wrote: > > > > On Oct 4, 2021, at 9:47 PM, Ethan Dicks via cctalk < > cctalk@classiccmp.org> wrote: > > > > On Mon, Oct 4, 2021 at 7:42 PM Chris Zach via cctalk > > wrote: > >> Oddly enough I do have a copy of Pro/Venix 1.0 that would fit on a > >> Pro/350 with a 5mb hard drive. Slow as *dirt*, you could literally watch > >> the hard drive seek back and forth with the little arm on the side. But > >> it did work. > > > > I have one of those. I brought it to VCF East two years ago for the > > Mother of all UNIX Demos. I think there's 300-400KB free on that > > RD50. > > I wonder if it supports at least an RD51, since those arrived together > with the RD50. > The initial DEC Rainbow port of Venix did not, though the later Boston Software Works enhancements did. Venix 2.0R only supported RD50. > > It is indeed slow as dirt. > > Chances are it would be noticeably faster with an MFM emulator connected. > My Rainbow certainly is for similar disks.The MFM emulator isn't exactly speedy, but it's at least a bit faster than the real disks it replaced. Warner
Re: PDP-11 Unix V7M-11 V1.0 under SIMH
I wonder if it supports at least an RD51, since those arrived together with the RD50. Yes, it did. Venix 1.0 ran on a RD51 and was a LOT faster. I keep the RD50 around mostly as a "good god, is this faster than a floppy" conversation piece. Chances are it would be noticeably faster with an MFM emulator connected. Probably, but I really don't use those. I like spinning media, and as long as it keeps rolling I'll keep using it. C paul
Lecture: Update Computer Club: History and Not-So-Certain Future, 2021-10-09, 18:00
Hi all, you're invited to the Update computer club[0] public lecture series "Updateringar"[1]! When: 2021-10-09, 18:00 CEST (Note: one hour earlier than usual!) Stream: https://streaming.media.ccc.de/vcfb2021/ Q&A:https://bbb.vcfb.de/b/ank-eka-1zw-rkc Update Computer Club: History and Not-So-Certain Future At Swedish universities, students organize in clubs for spare time activities like photography, sports, music and also computers! Update is the student computer club loosely connected to Uppsala University. We started out in 1983 around what was then new shiny computers and have evolved into a caretaker of the old and precious. We have kept the very DECSYSTEM 2060 around which the club was formed as well as a VAX 8650, PDP-12, a running PDP-11/70 and many other things. The club is creeping up on its 40th birthday and we would like to present a retrospective with anecdotes and trivia. The future is uncertain as the university department paying for our rooms is moving and will no longer be able to accomodate Update. What will the next chapter for this old club be? And how can you help us? Pontus Pihlgren (Update) The lecture is free and open to everyone. Note: This talk is a contribution to the Vintage Computing Festival Berlin 2021 and therefore happens one hour earlier than our usual time. The link for participation is also different. Click here to watch the lecture stream: https://streaming.media.ccc.de/vcfb2021/ Click here to ask a question or discuss afterwards (no sign-up needed): https://bbb.vcfb.de/b/ank-eka-1zw-rkc See also our online exhibition[2] at the event. Don't want to miss upcoming events? Subscribe to our low-traffic announcement list by sending a mail with the body "subscribe announce" to majord...@update.uu.se! Hope to see you there, Anke [0] https://www.update.uu.se/index_eng.html [1] https://www.update.uu.se/wiki/doku.php/projekt:updateringar [2] https://wiki.vcfb.de/2021/en:ausstellungen#the_swedish_educational_computer_compis
