test-drb June 2011

test-drb@ccmp.vtda.org

141 participants
161 discussions

by wdonzelli＠gmail.com

> I have some Hilti gear, and some is from China, some is from Poland. And Slovakia. My very old Hilti hammer drill is from Western Germany. -- Will

12 years, 10 months

Question re: Lisa expansion cards

by snhirsch＠gmail.com

I picked up a two-port parallel card for my Lisa 2/10. Unfortunately, it fails the POST diagnostics with error '92'. The system does correctly identify which slot it's in, FWIW. Does anyone know what the system firmware is poking around for? Is it asserting a checksum test on the card's EPROM? Checking for an interrupt response? The label covering the parallel card EPROM erase window is long gone, so I'm wondering if it was left in the sunlight and partially erased. Does anyone have an image of the EPROM? Steve --

12 years, 10 months

free for the cost of shipping : Apollo DN 4500 +extra's

by tim＠hunkler.com

Greetings, I have a friend that is looking for a DN4500 or DN5500. Unfortunately he is in the hospital right now. He had a serious case of spiral meningitis and has been unconscious for a week. The doctors are pulling him through!!! I'd like to keep in touch and maybe he will be interested in a month when he is recovered. He has a DN5500 that was fully intact, including a cartridge drive, but the clock battery leaked acid on the motherboard and it will no longer work. But the disk drive, RAM, cartridge tape, etc. all work. So making a binary image of the tapes seems possible. Both of us used to be Applications Engineers for Mentor Graphics :-) see: www.hunkler.com/aegis.htm Thanks, Tim Hunkler

12 years, 10 months

Nazi System 360/370 book...

by healyzh＠aracnet.com

So my wife wanted to show me a book tonight. Turned out it was one of mine, she'd noticed something interesting. System 360/370 Job Control Language and the Access Methods by Reino Hannula What's up with the Swastika on the spine of the book? It's made up of little triangles, but it's definitely a swastika. Very strange. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh at aracnet.com | OpenVMS Enthusiast | | | Photographer | +----------------------------------+----------------------------+ | My flickr Photostream | | http://www.flickr.com/photos/33848088 at N03/ |

12 years, 10 months

Determine installed memory - microVAX 3100 Model 20e.

by CCTECH＠beyondthepale.ie

Austin Pass wrote: > >How do I determine the installed memory in a microVAX 3100 Model 20e? > >The unit has no disk in it presently. It starts healthily though and talks >to my VT420, although it doesn't seem to run many diagnostic tests compared >to what I'm used to seeing on my 3100 model 90. It also doesn't report the >amount of installed memory and SHOW CONFIG / SHOW MEM / T 9E produce >"ILL COMMAND". > I haven't come across a model 20e but I would have expected SHOW MEM to work. Try T 50 - hopefully there should be a number giving the memory size in hex just below the line starting with MEM. Regards, Peter Coghlan.

12 years, 10 months

TOPS-10 in a box...

by CCTECH＠beyondthepale.ie

Dave McGuire wrote: >On 6/21/11 6:25 PM, Peter Coghlan wrote: >> For my final year engineering degree project, I co-wrote a Z80 simulator in >> somewhat pre-FORTRAN-77 to run on an IBM 4381 running MUSIC (under VM). The >> college planned to use this to teach students about microprocessors but I >> don't know if this was ever done. >> >> Not having much use for a Z80 simulator myself, I later rewrote it as a 6502 >> simulator and then converted the core of the simulator from FORTRAN to IBM 370 >> assembly and later still, VAX assembly. It can run the BASIC rom from the BBC >> Micro but not the OS rom. Instead some mainly text based OS functions are >> emulated/simulated directly. Software such as text based adventure games for >> the BBC Micro can be run on the simulator but anything relying on graphics, >> sound or trying to play directly with the hardware doesn't do so well. > > That sounds really, really cool. Do you still have the source code? > I do have the source code. I will gather it up and make it available. However, it's not pretty. (I am trying to change ISPs at the moment so bear with me if it takes a little time to get organised.) Regards, Peter Coghlan.

12 years, 10 months

Determine installed memory - microVAX 3100 Model 20e.

by austin＠ozpass.co.uk

Hello all, How do I determine the installed memory in a microVAX 3100 Model 20e? The unit has no disk in it presently. It starts healthily though and talks to my VT420, although it doesn't seem to run many diagnostic tests compared to what I'm used to seeing on my 3100 model 90. It also doesn't report the amount of installed memory and SHOW CONFIG / SHOW MEM / T 9E produce "ILL COMMAND". Can anybody help? -Austin. Sent from my iPad

12 years, 10 months

TOPS-10 in a box...

by CCTECH＠beyondthepale.ie

Richard Cini wrote: >From stackoverflow.net (someone was talking about porting/conversion >projects they were involved in): > >"Ported an 8080 simulator written in FORTRAN 77 from a DECSystem-10 running >TOPS-10 to an IBM 4381 mainframe running VM/CMS." > >Interesting comment. I wonder if that's how Gates/Allen would have done it. > For my final year engineering degree project, I co-wrote a Z80 simulator in somewhat pre-FORTRAN-77 to run on an IBM 4381 running MUSIC (under VM). The college planned to use this to teach students about microprocessors but I don't know if this was ever done. Not having much use for a Z80 simulator myself, I later rewrote it as a 6502 simulator and then converted the core of the simulator from FORTRAN to IBM 370 assembly and later still, VAX assembly. It can run the BASIC rom from the BBC Micro but not the OS rom. Instead some mainly text based OS functions are emulated/simulated directly. Software such as text based adventure games for the BBC Micro can be run on the simulator but anything relying on graphics, sound or trying to play directly with the hardware doesn't do so well. I didn't go on to have any input into MS-DOS or Windows :-) Regards, Peter Coghlan.

12 years, 10 months

Apple II Concert in Los Angeles, looking for more Apple IIs

by christian_liendo＠yahoo.com

I figured someone in Cali would take interest in this. http://machineproject.com/archive/events/2011/06/25/apple-ii-concert/ Apple II Concert Saturday, June 25th, 2011 6pm: Meeting of the Apple II owners/musicians 8pm: Concert The old Apple II, first introduced in 1977, was a revolutionary computer in many ways. Sound capabilities were not one of them. The Apple II?s sound system, unlike contemporaries such as the Atari 800 or Commodore 64, did not use a discreet sound chip, but rather a simple timer circuit that could be coaxed into creating square-wave tones. Most chiptune musicians tend to use sound-chip based systems, but there is a certain charm to square-wave tones. Some may define this charm as ?annoyance.? So, as a grand ?musical? experiment, noted loon Jason Torchinsky has written a crude 16-step sequencer for the Apple II, and is seeking to gather up as many Apple IIs as possible to construct an orchestra which will then perform a live, dynamic concert/musical event. Machine?s resident music guru, Chris Kallemyer, will be on hand to discuss the nature of music, why some of the Apple?s 256 tones are notes and some are not, and generally help make things somewhat listenable. Who knows what the end result will sound like? A chorus of angels, poking at touch-tone phones? All the computers from the background of every sci-fi movie from the 1950s-80s going off at once? A serenade by a truckload of R2-D2s? Come on out and listen for yourselves. We are currently seeking Apple II owners to contribute to making this happen! Please contact machine at machineproject.com if you would like to participate!

12 years, 10 months

Interesting teletype/computer artifact...

by jonas＠otter.se

On Tue, 21 Jun 2011 12:26:38 -0400, Ethan Dicks <ethan.dicks at gmail.com> wrote: > On Tue, Jun 21, 2011 at 12:16 PM, Dave Caroline > <dave.thearchivist at gmail.com> wrote: >> If you are of a certain age and live in Britain you would know bog >> paper could be VERY strong. > > Dunno if it's the era you are referring to, but I spent the summer of > 1985 in Britain and remember the bog paper as being quite stout. I > can imagine it surviving the rollers and printhead of an ASR-33 (not > sure if it would have buckled enough to snag a dot matrix head or > not). > Izal Medicated :-) Does that stuff still exist? Designed to be as non-absorbent as possible. The difference between using that stuff and a piece of wood was not noticeable. It would probably work quite well as a replacement for roof slates. /Jonas

12 years, 10 months

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test-drb June 2011