test-drb

test-drb@ccmp.vtda.org

101090 discussions

by COURYHOUSE＠aol.com

it appears the pen kit for our plotter got listed before we had it glassed in living the glassed in display a areas if anyone has a calcomp box with the solenoid and pens that is extra to their needs please let us know many thanks Ed Sharpe archivist for smecc _www.smecc.org_ (http://www.smecc.org) In a message dated 12/23/2015 6:28:28 A.M. US Mountain Standard Time, dave.g4ugm at gmail.com writes: Surely there is a copy of CalComp Host Computer Basic Software (HCBS) around somewhere that talks to the XY11. After all the Calcomp is pretty thick. All it can do is move 1 step at once, well it can do diagonals as well, but pretty thick... Dave G4UGM > -----Original Message----- > From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Stefan > Skoglund (lokal anv?ndare) > Sent: 23 December 2015 11:07 > To: cctalk at classiccmp.org > Subject: Re: XY11 Manual, Anyone? > > > > > Then for software I found a diagnostic, XXYAD0 that supposedly > > > should draw a square and a rectangle. > > > > > > Anyone know of other drawing software that uses the XY11 > > > > > > /Mattis > > > > The book 'The Minicomputer in the Laboratory' by James W Cooper covers > > using an X-Y plotter with an 11/05, and has assembly listings and a > > whole bunch of related stuff about scientific plotting. Also a lot of > > info on using the LPS- > > 11 too. > > There are plenty of copies out there and quite cheap too. It's an > > excellent book and could be of use to you. > > > > Steve. > > > > Boken finns i Ume? universitets boksamling (?ven p? > fysikinstitutionen.) > Det verkar inte finnas n?got exemplar i Uppsala d?remot. :-) Kastad ?

10 years, 4 months

An IBM I/O Selectric interface using TTL and a 2708 EPROM

by steven＠malikoff.com

Back in the late 70s early 80s one of Dad's work colleagues came up with this circuit for interfacing an IBM I/O Selectric to a microcomputer. We had one, which we planned to use with our Fairchild/Mostek F8 development board, but it never got done - my brother and I wanted a computer with a screen, not a printer! So we spent our pocket money (and Dad's too) on an S-100 kit system, but that's another story. Recently I found the only remains of our I/O writer, the platen. Sadly I think it must have been junked, the platen being kept to roll out photographic prints in Dad's darkroom. I just finished scanning, cleaning up the degradation and turning the circuit into a PDF. These days an Arduino or RasPi would be a simpler and more flexible way to go, but I hope you find it interesting looking at how it was done with TTL and discrete components. The circuit was designed by (I believe) Neil Taylor, possibly with the help of Derek Williamson, both brilliant IBM Australia CE's. I know my dad always spoke very highly of them. It's an 8-page PDF at http://web.aanet.com.au/~malikoff/misc/IBM_IO_Selectric_interface.pdf Regards, Steve Malikoff.

10 years, 4 months

XY11 Manual, Anyone?

by COURYHOUSE＠aol.com

I had the large ibm calcomp plotter if big wide one we have the same ... it is in the hp display case at smecc museum there was a fortran graphics text book we had adn I had gotten with a HP 3000 and it had a interface board ( parallel interface?? too many years) I made it plot squares etc .. as I remember the hp intrinsics may have had some support for this.. once I did that i put it aside and went back to playing with the HP multi-pen HP plotters we sold back them at Computer Exchange Inc. In a message dated 12/22/2015 3:22:01 P.M. US Mountain Standard Time, steven at malikoff.com writes: ---------------------------- Original Message ---------------------------- Subject: XY11 Manual, Anyone? From: "Mattis Lind" <mattislind at gmail.com> Date: Wed, December 23, 2015 2:53 am To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> -------------------------------------------------------------------------- > I have in mind to connect a machine to an IBM 1627 (CALCOMP 565) plotter > and then the XY11 which just arrive would fit nicely, I think. > > But I cannot seem to find any manual for the XY11. Anyone know of a manual? > > The board is rather simple so it should be possible to work out the details > on how to interface it by hand but it would be nice to have the proper > manual. > > Then for software I found a diagnostic, XXYAD0 that supposedly should draw > a square and a rectangle. > > Anyone know of other drawing software that uses the XY11 > > /Mattis The book 'The Minicomputer in the Laboratory' by James W Cooper covers using an X-Y plotter with an 11/05, and has assembly listings and a whole bunch of related stuff about scientific plotting. Also a lot of info on using the LPS-11 too. There are plenty of copies out there and quite cheap too. It's an excellent book and could be of use to you. Steve.

10 years, 4 months

Fw: Odd disk image format... .552?

by nico＠farumdata.dk

On Tue, Dec 22, 2015 at 10:17 PM, Nico de Jong <nico at farumdata.dk> wrote: > ---- Original Message ----- > From: "Mike Ross" <tmfdmike at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" >> <cctalk at classiccmp.org> >> Sent: Tuesday, December 22, 2015 9:41 AM >> Subject: Odd disk image format... .552? >> >> >>> Recently found some long-lost images of 5 1/4" floppies that were sent >>> to me... 10-15 years ago. Here's one of them: >>> >>> http://www.corestore.org/RP06.552 >>> >> Seems to be a MSDOS 5.0 boot disk, with just one important program, >> RP06.EXE, on it, and then some support programs. >> As far as I can see, it is a physical backup. Could the 552 just be a serial >> number `? > >That's kinda what I expected actually... so you reckon they're just in >normal raw image format for e.g. Rawrite? > Suppose so. They took a complete disc, sector by sector, and wrote it as a file. /Nico

10 years, 4 months

Now this person is optimistic

by jnc＠mercury.lcs.mit.edu

Check out: http://www.ebay.com/itm/DEC-PDP8-I-MINICOMPUTER-PDP8-PDP-8-PDP-8/2014877000… I know it has a bunch of DECTape drives, but... Noel

10 years, 4 months

Apple II keyboard WTB

by mail.nickallen＠gmail.com

Hey everyone, just got my Apple1 powered up!!! The PIA is hot to the touch, I heard they run hot, how hot is too hot?? Looking for an Apple II keyboard to convert for use on my Apple1. Anyone have one for sale or trade? Thanks! -Nick

10 years, 4 months

Odd disk image format... .552?

by tmfdmike＠gmail.com

Recently found some long-lost images of 5 1/4" floppies that were sent to me... 10-15 years ago. Here's one of them: http://www.corestore.org/RP06.552 I've never seen that .552 file extension before. Any clue? It's possible that refers to a version number rather than some obscure disk image format... (They are allegedly Setasi Shelby RP12 boot disks btw :-) ) Mike http://www.corestore.org 'No greater love hath a man than he lay down his life for his brother. Not for millions, not for glory, not for fame. For one person, in the dark, where no one will ever know or see.'

10 years, 4 months

Anyone fancy a laugh?

by jnc＠mercury.lcs.mit.edu

> From: Adrian Graham > Overblown salesmanship aside, technically I suppose they're right. Well, I don't think so. According to Wikipedia (I know, I know), the Lisa was released on January 19, 1983, but the Xerox Star (AKA Dandelion): http://en.wikipedia.org/wiki/Xerox_Star was introduced in 1981, almost two years before. The Star was supposed to be a commercial product version of the Alto, and although it had many issues, it did have an advanced version of the graphic-based user interface that is now universal - icons, etc, etc. And it had a mouse. Noel

10 years, 4 months

Anyone fancy a laugh?

by binarydinosaurs＠gmail.com

Having typed that subject line I'm changing my attitude slightly: http://www.ebay.co.uk/itm/ONE-OF-FEW-REMAINING-1ST-AVAILABLE-MICE-IN-THE-WO… Overblown salesmanship aside, technically I suppose they're right. Even given Doug Engelbart's introduction in 1964 the mouse wasn't a massive commercial success by 1983 was it. Still a lot of cash though, and when I bought my Lisa in 2005 it came with that rodent so I'll put it alongside my little collection of VSXXX workstation mice as WOW*R at RE*L@@K* items :) -- adrian/witchy Owner of Binary Dinosaurs, the UK's biggest home computer collection? www.binarydinosaurs.co.uk

10 years, 4 months

dumping Western Digital Microms (PDP-11, WD16, Pascal Microengine)

by jnc＠mercury.lcs.mit.edu

> From: Eric Smith > So far I have dumped the following LSI-11 Microms: > > 3010D, DEC P/N 23-001B5 (also designated CP1631-10) - addr 0x000-0x1ff > 3007D, DEC P/N 23-002B5 (also designated CP1631-07) - addr 0x200-0x3ff Excellent work! I was going to point out that there is another uROM (KEV11) for the LSI-11, for the EIS/FIS, and also that there is some variation in the numbers of the uROM chips, but along the way, I ran into a puzzle. DEC documentation differs on the location of the two uROM's in the LSI-11/2 (KD11-HA, M7270): the 'Microcomputer Products Handbook' gives the order (from the handle end) as KEV11, uROM 1, uROM 0, Control, Data Path; the print set for the KD11-HA gives KEV11, Control, uROM 1, uROM 0, Data Path! >From which I conclude that either: i) one of the documents, perhaps the Handbook, is wrong, or ii) the 'Control' chip must also be a uROM, and that there is some variation in how the 3 chips can be plugged in? Here is more data from a couple of boards I have access to (from the handle end): - 2007C 23-002C4, 3010A 23-001B5, 3007D 23-002B5 - 2007C 23-002C4, 3010D 23-001B5, 3007D 23-007B5 - 2007C 23-003C4, 3010D 23-008B5, 3007D 23-007B5 Anyone know what's up here? Getting back to the KEV11, the one I have seen is a 3015 23-003B5. > the control chip also contains PLAs that can force microcode jumps under > various conditions despite there being no corresponding jump instruction in > the Microms. Hmm. Any idea/way to read them out? Noel

10 years, 4 months

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