September 2022 - cctalk - classiccmp.org

by emanuel stiebler

Hi all, anybody has some GCC or any other tool chain for the above? Or some pointers, which was the last version of the GCC tool chain which supported the i860, and would be still compile-able on this days tools/OS's? Anything? Thanks in advance!

1 day, 6 hours

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Fwd: Philips P2000C carrying strap

by Tony Duell

Does anyone have a Philips P2000C CP/M luggable with the carrying strap? I will be restoring such a machine in the near-ish future and mine is lacking the strap. Clear photos of the end fittings that slot into the machine, the dimensions of them, etc would be a great help in making something up. -tony

5 days, 5 hours

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7485 chip history??? (Solid State Music SB-1)

by William Sudbrink

Hi, I recently acquired a Solid State Music SB-1 from which all the chips had been removed. I've reinstalled all of the chips (I located an SSM2000) and I've been trying to figure out why this board crashes my computers. The conclusion that I've come to is rather astounding. The board specifies two 74ls85 4 bit binary comparator chips to perform address decoding. The designers of this board seem to have had incorrect pinouts for it. Every source that I can find specifies: B3 1 16 VCC A<B (in) 2 15 A3 A=B (in) 3 14 B2 A>B (in) 4 13 A2 A>B (out) 5 12 A1 A=B (out) 6 11 B1 A<B (out) 7 10 A0 GND 8 9 B0 The 7485s that I was able to get have this pinout. BUT! The SB-1 is designed as: B2 1 16 VCC A2 2 15 A3 A=B (out) 3 14 B3 A>B (in) 4 13 A>B (out) A<B (in) 5 12 A<B (out) A=B (in) 6 11 B0 A1 7 10 A0 GND 8 9 B1 I Ohm'd out the board to verify this and it matches the schematic here: https://wiki.theretrowagon.com/wiki/Solid_State_Music_SB1 What the heck??? Did the pinout of the 7485 just arbitrarily change at some point? Was this some competition between manufacturers? Is there any way to get the "right" 7485? Thanks, Bill -- This email has been checked for viruses by Avast antivirus software. www.avast.com

5 days, 5 hours

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Timeline of Computer History

by Tom Hunter

I have just stumbled across this nice "Timeline of Computer History" from the CHM: https://www.computerhistory.org/timeline/computers/ I have not seen this before and thought it may be of interest to this list. Tom

1 week, 2 days

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Response from the list manager

by Peter Van Peborgh

Is it just me? I have recently sent an email to this guy about two different topics. There was no response in either case. What is going on? Or am I missing something? Many thanks, peter vp

1 week, 3 days

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Minicomputer front panel.

by Peter Van Peborgh

I know this is sacrilege but I am looking for the front panel of a *Data General Nova *and/or *a DEC PDP 8/11/12/15*. Why? I collect artefacts from the days of the minicomputer and earlier and I want them for my collection/display. They should be not too damaged and of course do not need to be functional. I would be willing to pay postage/freight. Any offers? Any offers? Peter PS Please don't shout at me!

1 week, 3 days

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Project Monterey booting in 2022

by Liam Proven

https://virtuallyfun.com/wordpress/2022/09/24/ibm-aix-for-ia64-itanium-aka-… -- Liam Proven ~ Profile: https://about.me/liamproven Email: lproven(a)cix.co.uk ~ gMail/gTalk/FB: lproven(a)gmail.com Twitter/LinkedIn: lproven ~ Skype: liamproven UK: (+44) 7939-087884 ~ Czech [+ WhatsApp/Telegram/Signal]: (+420) 702-829-053

1 week, 6 days

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8" disk question!

by geneb

All the discussion around 8" disks reminded me about a question I've not been able to find an answer to. I've got a Qumetrak 842 drive that I use for imaging 8" disks with either ImageDisk or AppleSauce. When I first tried it out with AS, the listed RPM was > 7K. It turns out that the disk I was working with was a NOS Dysan that had both the single and double-sided index windows punched in the jacket. The 842 has both of those index sensors, so both were being triggered one after the other. The solution was to cover one of the index windows on the disk. The question I have is how did a contemporary system deal with the combination of a disk with both index windows and a drive with both index sensors? tnx! g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind. http://www.diy-cockpits.org/coll - Go Collimated or Go Home. Some people collect things for a hobby. Geeks collect hobbies. ScarletDME - The red hot Data Management Environment A Multi-Value database for the masses, not the classes. http://scarlet.deltasoft.com - Get it _today_!

2 weeks

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11/45 and 11/34 Taken!

by Kevin McQuiggin

Hi All: I’m pleased to report that my 11/45 and 11/34 which were in need of a new home have been taken by another collector here in BC. They will be off to a very good home! Thanks for reading my post. Kevin

2 weeks, 1 day

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pdp-11/45 and pdp-11/34 Available - Free! (Vancouver, BC)

by Kevin McQuiggin (SFU)

Hi All: I’ve been a collector of old DEC systems for about 30 years. I haven’t been active on the list for the last decade or so due to work, but am “surfacing” now as my wife and I are moving and I need to find a good home for two of my systems and their peripherals. I can follow up with photos et cetera if necessary, but the subject line really says it all: a functional 11/45 in a 6’ standard DEC rack, and an 11/34 in a shorter DEC rack. Both systems are functional. The 11/45 has an RK05. The 11/34 has a TS03. I also have a TU80 9-track tape drive (short rack), and dual RL02 drives in another short rack that go with the systems. These would come with a couple dozen tapes, and about 10 RL02 packs. I have a few RK05 packs as well. I would like these systems to go to someone who understands them and will use them. As members on this list will know, they exemplify computing in the 1970s through the 1980s, and it would be nice to keep them running for educational and historical purposes. The systems and peripherals are free, but they must be picked up. I cannot ship, nor do I have time to separate components. If I cannot find a home for these systems then they will, unfortunately, be headed to the metal recycler. I have tried museum donation but bureaucracy gets in the way and decisions take far too long. Hence I am offering the systems here on the list. The deadline for pickup is October 15th. This is a hard deadline as we must vacate our house. I would take the machines with me if I could! Kevin Sent from my iPad

2 weeks, 1 day

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2022

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