test-drb December 2018

test-drb@ccmp.vtda.org

174 participants
203 discussions

Osborne-1 with prototype-based motherboard

by vintagecomputer＠bettercomputing.net

Am just posting this as I am hoping someone out there knows someone who was involved with Osborne back in the day to find out more this Osborne 1 motherboard I found in a low serial O1 I picked up for $100. I reached out to Lee Felsenstein on it and he suggested it was related to the boards produced for the 10 prototypes Osborne built, or a derivative of them. He couldn't say for sure how it ended up in mine. But I was hoping if anyone knows any Osborne experts that might help me on this - it is not currently working and I'm hoping to find schematics, etc to get it going again. Obviously with the radical differences in layout, the schematics for the production motherboard isn't terribly helpful. I've posted a blog about it here with a picture of the board for those curious: http://bradhodge.ca/blog/?p=1186 Brad

5 years, 11 months

RSTS COBOL

by iamvirtual＠gmail.com

Is the optional RSTS/E COBOL software available for RSTS/E V5 or V6? I Googled for it, but I didn't uncover a copy. --barrym

5 years, 11 months

wanted back issues IEEE ANNALS OF THE HISTORY OF COMPUTING bound or unbound... dtop us a line off list please.

by couryhouse＠aol.com

RIGHT ON! In a message dated 12/29/2018 5:35:20 PM US Mountain Standard Time, cctalk at classiccmp.org writes: The prime benefit of silverfish infested bulky piles of old paper, distributed widely among individuals who value history, is that no central entity can just suddenly decide to destroy them all, for whatever reason. Or 'mass edit' the digital files, like some corporations have been culling schematics from their archives of digitized old manuals.

5 years, 11 months

wanted back issues IEEE ANNALS OF THE HISTORY OF COMPUTING bound or unbound... dtop us a line off list please.

by couryhouse＠aol.com

yep IEEE? lets none of thier? stuff into the open? that? is? sought? after... Worse? yet... Lucent? gave them Bell System? Tech? Journals? which? Lucent? had? ? up? for? free... then? then? IEEE? slapped them? behind a? paywall. Ed# In a message dated 12/29/2018 1:00:29 PM US Mountain Standard Time, cctalk at classiccmp.org writes: On 12/29/18 11:49 AM, Bill Degnan via cctalk wrote: > I just passed along three boxes of these to the VCFed collection. > Eventually I assume there will be a library to make these available onsite, > not sure. Stupid question, but doesn't IEEE CS already have these archived?? (Yes, I know for access, you need to cross their palm with silver, but it might point to copyright issues). --Chuck

5 years, 11 months

Harris Mini's (was: WTD: 9 track open reel for PDP-11)

by kevin_anderson_dbq＠yahoo.com

Zane wrote: > I didn?t realize they were 48-bit, though I seem to remember them being 24-bit. > The system I used was more ?logistics? and general purpose ADP. I spent a *LOT* > of time using the MUSE word processor. > > Zane >> On Dec 28, 2018, at 1:19 PM, Bob Smith <bobsmithofd at gmail.com> wrote: >> >> I almost remembered, had to look it up to confirm 81, the 48bit system >> they carried on when they bought the original company that had made >> them and the Vulcan OS. Not a bad scientific and instrumentation >> machine. What was the original company Datacraft or something? >> bob >> Zane, you are right that the Harris computers were 24-bit processors. The primary word was 24 bits, with double integer at 48 bits and full floating point at 96 bits. Someday, when I have time, maybe I will think about an emulator. But not right now. I too spent many hours on Harris systems from 1977 to about 1983 or 1984, in college and then in working with the U.S. Army Corps of Engineers during summers and break weeks in graduate school. Most of my work was with FORTRAN, plus some assembly and COBOL. Kevin Anderson

5 years, 11 months

General Discussion: On-Topic and Off-Topic Posts"

by sop00000h＠scotnet.co.uk

Pdp 8 tapes... I have a bid i for these. Was planning to duplicate - not for profit - and stick em up on a we-site for others to view/download.... Is there a repository for such tapes?? Bitsaver?? Sent from my HUAWEI P10 on Three

5 years, 11 months

Controlfreaks Digest, Vol 177, Issue 3

by dave＠mausner.us

Peter, the second one in your list is an example of a 6X00 cordwood package. -- Dave Mausner. +1-312-925-3694. +1-708-848-2775. Rem tene; verba sequentur -- Cato On Sat, Dec 29, 2018 at 3:01 PM < controlfreaks-request at lists.controlfreaks.org> wrote: > Send Controlfreaks mailing list submissions to > controlfreaks at lists.controlfreaks.org > > To subscribe or unsubscribe via the World Wide Web, visit > > http://lists.controlfreaks.org/listinfo.cgi/controlfreaks-controlfreaks.org > > or, via email, send a message with subject or body 'help' to > controlfreaks-request at lists.controlfreaks.org > > You can reach the person managing the list at > controlfreaks-owner at lists.controlfreaks.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Controlfreaks digest..." > Today's Topics: > > 1. Fwd: CDC transistor boards (Paul Koning) > > > > ---------- Forwarded message ---------- > From: Paul Koning <paulkoning at comcast.net> > To: controlfreaks <controlfreaks at controlfreaks.org> > Cc: > Bcc: > Date: Fri, 28 Dec 2018 16:47:16 -0500 > Subject: Fwd: CDC transistor boards > Seen on another list, I identified the second but not the other two. > > paul > > Begin forwarded message: > > *From: *Peter Van Peborgh via cctech <cctech at classiccmp.org> > *Subject: **CDC transistor boards* > *Date: *December 28, 2018 at 3:42:44 PM EST > *To: *<cctech at classiccmp.org> > *Reply-To: *Peter Van Peborgh <peter at vanpeborgh.eu>, "General Discussion: > On-Topic Posts" <cctech at classiccmp.org> > > Gentlemen of advanced years who can remember CDC, cradle of Cray. > > Can you tell me which CDC computer type these three boards belonged to? It > is for labeling purposes in my personal museum. > > https://postimg.cc/crJHv3Lt > https://postimg.cc/Z0HnYH4h > https://postimg.cc/6TtTNgs0 > > I am sure this will be easy for the right person. Many thanks! > > peter > > > > >

5 years, 11 months

CDC transistor boards

by peter＠vanpeborgh.eu

Gentlemen of advanced years who can remember CDC, cradle of Cray. Can you tell me which CDC computer type these three boards belonged to? It is for labeling purposes in my personal museum. https://postimg.cc/crJHv3Lt https://postimg.cc/Z0HnYH4h https://postimg.cc/6TtTNgs0 I am sure this will be easy for the right person. Many thanks! peter

5 years, 11 months

OCR old software listing.

by mattislind＠gmail.com

Finally I got hold of the sources for the PDP-11 SPACE WAR that was submitted to DECUS by Bill Seiler. The format is scans of the PAL-11S listing output. It is easy to crop the image to only contain actual source. Then running OCR on it. Tried a few online versions and tesseract. The problem is that the paper that the listing is printed on has lines. Very black lines. It makes the OCR go completely crazy. Source lines without black lines OCR ok. The others do not. The files need massive amount of manual intervention. Does anyone have an idea how to process files like this? A good way to remove the black lines? There are only 19 source files with three or four pages each so I don't think it makes sense to try to train tesseract to do it (training tesseract seems to be a huge undertaking). https://i.imgur.com/dvY973s.png /Mattis

5 years, 11 months

WTD: 9 track open reel for PDP-11

by w2hx＠w2hx.com

Hi friends, I've been building up a nice little PDP-11/23+ with cabinets, RL02's etc. To really round things off, I'm looking for a open reel-to-reel style 9-track tape drive to add to the system (don't ask why, punishment must be somewhere in my nature). Not interested in the autoloading/drawer type drives. There are some fujitsu drives on ebay at the moment, but shipping from CA to NY is both costly and risky. Does anyone have a (preferably working) 9-track drive that can be used with a PDP-11 (like a pertec interface) for sale? Willing to drive anywhere from Philly to Boston for one. Hopefully one in good shape. Thanks 73 Eugene W2HX

5 years, 11 months

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test-drb December 2018