- cctalk - classiccmp.org

by Ethan O'Toole

At this point I have achieved the SCP CPU card, a CPU support card and a Disk Master card. So hopefully all I need is some kind of 16 bit RAM board and a 4 slot S100 backplane and I can boot 86-DOS. I have started to read through the documentation on the hardware. Has anyone else been down this road and built a system to run this? - Ethan -- : Ethan O'Toole

2 years, 1 month

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Apple G5 Rebuild

by Kevin Parker

Hoping there's an Apple enthusiast out there somewhere please. A friend gave me a PM G5 which I'd love to add to the Apple corner of my collection. Must admit I love the G5 case. Problem is the internals are in a million pieces but everything seems to be there. Its not a basket case, more like a bucket case because I took the side off and basically poured it all out. My options are. > Toss it > Use the case for an ATX conversion > Use it for a letter box > Have a crack at fixing it. I like having a crack at fixing things first. I'm a preservationist first. Problem is my GoogleFoo can't find any diagrams, illustrations etc on how the internals are put together and I'm hoping some Apple person out there might have something or be able to point me somewhere. (I did find some photos at https://www.overclock.net/threads/power-mac-g5-build.1452312/ for a twin CPU model but I need more detail for a single chip 2.0 GHz PowerPC 970MP (G5) model.) Thank you. Kevin Parker

2 years, 1 month

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PALM assembler (IBM 5110)

by Steve Lewis

There is a note from Christian Corti last updated 2017: "..assembler listing generated with AS V1.41 from Alfred Arnold. ...which I have added a code generator for the PALM processor." I believe I've found a V1.42 of this on github. But the 5110 support is not listed in the github or pre-packaged builds. If Corti is available to help resurrect the notes on doing this, or if is more familiar with AS and can help get things going? Thanks! Steve

2 years, 1 month

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Bendix G-15 Restoration

by stephenbuck＠mac.com

Hi All, I wanted to let the group know about a Bendix G-15 Restoration project I just launched: https://headspinlabs.wordpress.com/bendix-g-15-restoration/ It's a pretty intimidating restoration (do no harm and all), so I'm reaching out to related sources, such as this group, for any suggestions or interest. Thanks, Steve

2 years, 1 month

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Copy of the 8080 instruction encoding reference from /dunfield

by Manna5＠Safe-mail.net

In the past, I have found a well written Intel 8080 instruction set reference on the ClassicCmp website (at http://classiccmp.org/dunfield/r/8080.txt). But now that URL returns "not found" message. Fortunately, I have already saved that document on my PC local disk, and now you can get its copy from http://manna5.c1.biz/8080.txt . Also, I want to ask if mirroring content from ClassicCmp is OK for the ClassicCmp community, or maybe it isn't OK and I should remove that copy from my site? _____________________________________________ Jan "Manna5" Mleczko, http://manna5.c1.biz/

2 years, 1 month

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AMP Punched Card Reader

by Cory Heisterkamp

Hey Guys, I was curious if anyone recognizes this punched card reader. Marked: AMP Incorporated - SYSCOM Division. It’s extremely well-built; pulling the lever at right moves the chrome lip forward and ejects the card. Case is rather stylized which suggests it was free-standing. Pics here: http://www.ht4100.com/temp/ Thanks, Cory Heisterkamp

2 years, 1 month

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Fwd: Bendix G-15 Documentation

by Van Snyder

-------- Forwarded Message -------- From: rob.kolstad(a)gmail.com To: van.snyder(a)sbcglobal.net Subject: Bendix G-15 Documentation Date: Mon, 3 Oct 2022 19:09:34 -0600 Bendix G-15 DocumentationDear Fellow G-15 Enthusiast, I'm Rob Kolstad, and I am sending you this little informational blurb because I think you are interested in Bendix G-15 projects (sometimes because I have seen someone messaged you about such things in the last two decades). Feel free to send me an 'unsub' note to never hear again about such things. This note announces the beta test of the first set of the documentation collection: https://rbk.delosent.com/g15doc.html The collection includes 161 source documents (some duplicates) comprising some 10,566 pages (including blanks). I have broken some of the source documents into their constituent sub-documents (e.g., the Technical Application Memos) for easy access, yielding 1,414 documents in total. The collection is by no means complete (coming soon: good large-format schematics and perhaps a search bar), but it's a good start. I'll try to scan the rest before the year is out. The fine folks at the System Source Computer Museum in Baltimore have gained, at least for now, several Bendix G-15's (and peripherals) along with more than two dozen boxes of Bendix documentation mingled with documentation of a large highway engineering firm's projects. The collection also has hundreds of paper tapes in fabulous condition. I scanned a fraction of these documents back in June and combined them with my personal collection (thanks to Bob Sander-Cederlof in Texas) and the documents from bitsavers.org and the Computer History Museum (among others). This documentation section forms one of the main parts of the soon-to- be-released (2022) bendixg15.com website for all things G-15, including software, hardware/restorations, emulators, news, photos, and notes. Please feel free to check out the documents. I'll let you know in a few months when the general web-site is available. Comments, questions, and suggestions are always welcome. RK ==================================================================== /\ Rob Kolstad Delos /\ / \ rob.kolstad(a)gmail.com 15235 Roller Coaster Road / \/\/ \ Colorado Springs, CO 80921 / \ \ \ Phone: +1 719 481 6542 ====================================================================

2 years, 1 month

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Lecture: Who am I? CPUID on the PDP-8, 2022-10-09, 14:00

by Anke Stüber

Hi all, you're invited to the Update computer club[0] public lecture series "Updateringar"[1]! Please note that this talk is given as a part of the Vintage Computing Festival Berlin 2022[2] this coming weekend, the time and place for watching the lecture stream are different than usual. When: 2022-10-09, 14:00 CEST Where: Stream: https://streaming.media.ccc.de/vcfb2022/Signallabor Q&A: https://bbb.cryptoparty.se/b/upd-0mo-m2u-aq8 Who am I? CPUID on the PDP-8 Portable software must adapt to peculiarities of the target platforms. Even variations within a "compatible" family of computers may require specific code. But how does a program identify which machine is executing it? In this presentation we will dissect, line by line, a subroutine written by the late Charles Lasner (CJL) as part of the Kermit implementation for the PDP-8 family of computers. The subroutine, "MACHINE", is capable of identifying all DEC PDP-8 models. Some familiarity with programming will benefit the listener, but the presentation includes the basics of PDP-8 assembly and the level should be approachable to most. Pontus Pihlgren (Update) The lecture is free and open to everyone. Don't want to miss upcoming events? Subscribe to our low-traffic announcement list here[3]! Hope to see you there, Anke/zeltophil [0] https://www.dfupdate.se/en/ [1] https://wiki.dfupdate.se/projekt:updateringar [2] https://vcfb.de/2022/index.html.en [3] https://lists.dfupdate.se/postorius/lists/announce.lists.dfupdate.se

2 years, 1 month

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Need 8mm or DLT-II tape?

by Van Snyder

I have many 8mm tapes. A few are new. First comers get new ones. I have a few 8mm cleaning cassettes I have about a dozen DLT-II tapes. I have some Ultrium LTO fibre-channel SCSI drives that were removed from a tape-mounting robot several years ago. I never used them in my computers because I don't have a fibre-channel SCSI card. The mounting bracket for one was modified to have an internal power supply -- which might be inadequate. I have two Fujifilm 200/400 GB Ultrium 2 LTO tapes. I have a 5.25" floppy drive. Any of these are yours for the price of shipping; local pickup is OK too. Van Snyder van.snyder(a)sbcglobal.net La Crescenta, CA

2 years, 1 month

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z9 (s390x) mainframe up for grabs in Melbourne, FL

by Adam Thornton

From the "Mainframe Enthusiasts" Discord; I don't have any other contact for him but I can send you a link to the Discord if you can't get there yourself. This is one of the first (maybe the first) of the 64-bit zSeries (descendant of S/360, S/370, S/390) machines. You would have to pay IBM a lot of money to legally run a modern z/OS or MVS or VM or z/VM or VSE or z/VSE on it (and current versions won't work, but, like, z/VM 4.4 would). You could run MUSIC/SP for free, and of course VM/370 and MVS 3.8 are in the public domain (although I do not know offhand if the z9 can run those late-70s OSes). It will also run S/390 and z/Linux of the right vintage, which are free but maybe difficult to acquire these days. From Member @Booper : Z9 mainframe, ds8000 storage array , tape drive and misc components are scheduled to go to scrap at the end of the month. If someone wants to chime in and throw some money my way, i can sign the whole storage unit over to you. Located in melbourne fl.

2 years, 1 month

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2024

2023

2022

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