test-drb

test-drb@ccmp.vtda.org

101090 discussions

Ancient transistor ?computer board (Peter Van Peborgh)

by peter＠vanpeborgh.eu

Guys, I now know it is an early CDC board. IT had C*NT*OLDATA on the reverse - how I missed that must be attributed to old age. (Thanks Doug) Here are shots of the back: https://photos.app.goo.gl/UPozyBB3zp7XYcP79 Any idea what the row of hole opposite the contacts were? Testing points? But then why holes and not short pillars? Some are labelled on both sides. Continuing in hope, peter

5 years, 10 months

Future of cctalk/cctech

by boris＠summitclinic.com

Agree that current mailing list format is best as simple, low bandwidth and can always post links to images or other large files. I still use Eudora as my email client and have text only emails. Seems to perplex a lot of people I deal with when I can't read their emails, but it seems somewhat wastefull to use 1-2 Mb to send a message that only needs 200 bytes at most (once one strips off all zero-information fluff from the email). Run my own mailserver as well so can email myself massive attachments when email is only way of getting data off a remote machine. Images take up a lot of space and are best dealt with via links. I've run my own webserver/ftpserver since 1999 and find that's the easiest way of sharing large files with people. While it's nice having high resolution photos like those that Samsung phones creat, they're in the 3-5 Mb size range. If I need to put a lot of photos on a web page, I'll use the free Photo Studio program (written by John Hawkins) which creates a web page with a series of thumbnails with full image available by clicking on thumbnail and can set size of thumbnail image. Rather old, but works fine for simple web pages where all one wants to do is serve up a set of images. Remember 15 years ago that online documentation was sparse but have found most DEC manuals are online and C64 stuff a lot easier to find than it used to be. Being rather paranoid, I've downloaded manuals for all machines I have and keep a duplicate copy of everything. Not sure how many people are on cctalk/cctech, but keeping everything text only would be best way of minimizing bandwidth for whoever hosts it, Boris Gimbarzevsky >On Fri, Jun 19, 2020 at 3:31 PM Maciej W. Rozycki via cctalk < >cctalk at classiccmp.org> wrote: > > > Sure, there's always `uuencode' when you do need to post that non-text > > piece (which I guess will keep the eyes of Luddites away from it too). > > > >Or an http, https, ftp, or gopher url to somewhere else hosting the image. > >Pat

5 years, 10 months

Someone's confused

by jnc＠mercury.lcs.mit.edu

Love the title on this: https://www.ebay.com/itm/184317705963 eBait auction: "16K Sense Inhibit Board .. VAX 6000, VAX-11/730". Yeah, core on a VAX! And such a deal, a mere US$400! Noel

5 years, 10 months

Fixing an RK8E ....

by bob＠jfcl.com

It appears that my RK8E has a problem - it fails the diskless control test with .R DHRKAE.DG SR= 0000 COMMAND REGISTER ERROR PC:1160 GD:0000 CM:0001 DHRKAE FAILED PC:6726 AC:0000 MQ:7777 FL:0000 WAITING Ok, maybe a bad bit in the command register so I'll check it out. But then it dawns on me - how do you work on this thing? It's three boards connected with "over the top" connectors - you can't use a module extender on it. Worse, the M7105 Major Registers board is the middle one of the stack! Is there some secret to working on this thing? Has anybody fixed one? Any suggestions? I hadn't thought about it before, but the KK8E CPU would have the same problem. Fingers crossed that one never dies... Bob

5 years, 10 months

Hercules SDLC/BSC interfacing project - want 3174-x1R

by mattislind＠gmail.com

Hello! I have been working on interfacing the Hercules emulator with various real terminals for some time. First project was an Alfaskop terminal cluster which I connected using a small STM32 controller handling BSC. Next is an Informer 213, portable 3178/3174 compatible terminal. It it using SDLC. A friend has a 3178 and 3279 which would interesting to work with. A 3174-51R/-61R/-81R/-91R would be very suitable for this. It would be very nice to test my BSC and SDLC code with the real IBM stuff. I have put my project here: https://github.com/MattisLind/alfaskop_emu/tree/master/Utils <https://github.com/MattisLind/alfaskop_emu/tree/master/Utils> Still very much Work In Progress. If anyone has a type 1 3174 that does BSC and SDLC so I could test my stuff I would be very interested. No need for fancy features like TCP/IP and/or token ring. I of course pay shipping. But can throw in various DEC QBUS stuff as a trade. /Mattis

5 years, 10 months

CSPI SC-3XL and SC-4XL documentation?

by cmhanson＠eschatologist.net

I've just come into a couple of CSPI VME cards, an SC-3XL and an SC-4XL (both with attached memory), and I was wondering if anyone has documentation. They're based on the Intel i860 and intended for VME-based array processors. -- Chris

5 years, 10 months

New drive for my 11/83....

by cz＠alembic.crystel.com

Picked up a CDC 94166 ESDI disk on Ebay last week, arrived and sure enough it works. No errors either, so I can now give my 30+ year old Fujitsu 2322 a rest and load up rsx11m+ instead of 11/m 4.2 After formatting it on the MTI controller (MQD13) I set the first partition to 30mb and loaded up my RT11 5.7 backup from the TK50 onto it with no issues. Productive. If I can find my DEQNA and an AUI to wireless adapter I could get this thing up on the net.....

5 years, 10 months

Future of cctalk/cctech

by couryhouse＠aol.com

Use modern email program that sees expanded char. Sets and graphics.... it is a brand new world !??? I love old hardware to look at but if communicating? I like? the ability to see graphical? things...? and I think tell majority of people like? images of things......?? Ed# On Wednesday, June 17, 2020 Fred Cisin via cctalk <cisin at xenosoft.com; cctalk at classiccmp.org> wrote: On Wed, 17 Jun 2020, ED SHARPE @ AOHell.com via cctalk wrote: > These 2 have my vote as well.... > I do not know, anyone using a text only mail reader anymore! > >> The one thing I would change here is removal of the restriction on attachments. >> Well, two things.. Getting rid of the cctalk/cctech split as well. I read this list on PINE, on a shell account at my ISP. In this group, I doubt that I am the only one. Can we restrict to TEXT emails? -- Grumpy Ol' Fred? ? ??? ??? cisin at xenosoft.com

5 years, 10 months

PLATO V Terminal

by jnc＠mercury.lcs.mit.edu

> From: Paul Koning > airfight and any number of other multi-user games -- a thing made > popular by PLATO and possibly originated there. What was the date on that? Multi-player MazeWar on the Imlacs/ITS at MIT was running before 1976 (I played it about then), but I don't recall exactly when it first ran (before my time). Noel

5 years, 10 months

E-Mail Formats RE: Future of cctalk/cctech

by dave.g4ugm＠gmail.com

> -----Original Message----- > From: cctalk <cctalk-bounces at classiccmp.org> On Behalf Of Peter Coghlan > via cctalk > Sent: 18 June 2020 08:22 > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Subject: RE: Future of cctalk/cctech > > ED SHARPE wrote: > > Use modern email program that sees expanded char. Sets and > > graphics.... it is a brand new world ! I love old hardware to look > > at but if communicating I like the ability to see graphical > > things... and I think tell majority of people like images of > > things...... Ed# > > > Just beware. Some environments, especially old EBCDIC ones put different currency symbols on the same code points So:- I wrote this as one dollar => $1.00 This as one pound => $1 And this as one euro => ?1 Lastly one cent => ?1 I expect you all get that as sent except for perhaps the Euro which didn't exist when Peters VAX was built.... ... but on an old UK EBCDIC mainframe Dollar becomes Pound and Cent becomes dollar. This was a real pain as a UK user of Bitnet. Dave > Let me get this straight. If I stop using VMS MAIL for this list and use one of > these new fangled things instead, I too will be able to make high quality > postings to the list, just like this one??? > > Regards, > Peter Coghlan > > > > > On Wednesday, June 17, 2020 Fred Cisin via cctalk <cisin at xenosoft.com; > cctalk at classiccmp.org> wrote: > > On Wed, 17 Jun 2020, ED SHARPE @ AOHell.com via cctalk wrote: > > > These 2 have my vote as well.... > > > I do not know, anyone using a text only mail reader anymore! > > > > > >> The one thing I would change here is removal of the restriction on > attachments. > > >> Well, two things.. Getting rid of the cctalk/cctech split as well. > > > > I read this list on PINE, on a shell account at my ISP. > > > > In this group, I doubt that I am the only one. > > > > > > Can we restrict to TEXT emails? > > > > -- > > Grumpy Ol' Fred cisin at xenosoft.com > >

5 years, 10 months

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb