[cctalk] Re: GEAC
Hello, A lot of them (at least in later years) would have run on Vmark/IBM/Rocket uniVerse which is still available from Rocket. Tommy Chang Sent from my iPhone > On Sep 29, 2023, at 6:34 AM, Bill Gunshannon via cctalk > wrote: > > > Here's a question for all our Computer Museum curators. > > > Have any of the old GEAC Library systems ever been salvaged and put into > > a museum? They were curious boxes and I think would make a nice addition > > to a collection. > > > bill > >
[cctalk] Re: What happened to the PDP-8 on ebay?
On 10/3/23 21:23, Bill Degnan via cctalk wrote: There was a PDP-8 (rack straight 8 with asr33) that was on ebay that disappeared..anyone know if it was sold? I can't find it, maybe the seller pulled the auction to sell privately. Bill I trolled thru VCF forum and I think this is the one you recall. It's the last straight 8 I saw listed. https://www.ebay.com/itm/145314563635 I also off your topic have observed a German listing and British listing for Olivetti Programma 101s for 40,000 pounds and 60,000 euro, in the same fantasy range as this listing which is for $18,000. This listing shows currently terminated September 20 due to an error in the listing. No relist by this vendor. He also did something on Sept 2 with is. Thanks jim
[cctalk] What happened to the PDP-8 on ebay?
There was a PDP-8 (rack straight 8 with asr33) that was on ebay that disappeared..anyone know if it was sold? I can't find it, maybe the seller pulled the auction to sell privately. Bill
[cctalk] Re: Microcom S-64 8085 system
Wouter de Waal via cctalk wrote: > Hi all > > I re-discovered some eurocards I found in a box at a swapmeet long ago. > > It looks like a complete 8085 system. Lots of RAM, 2K EPROM, I/O, FDC. > > The strange thing is that the EPROM is mapped at F800, the code in there > looks like 8085 code, and looks like it wants to live at F800. And there's > RAM at . > > The DIN41612 A/C 64 pin bus has provision for 16 bits data. > > Pics here http://retro.co.za/8085/Microcom/ > > Anyone maybe have more information on this? I'm curious. > > W Besides of relocating the entire ROM temporarly to 0x0 there are other possibilities, for example placing NOP's (0x0) on the data bus until the bus addresses reaching 0xf800 for the first time. This way a few extra gates and a flipflop is all what you need. On Z80 Systems I've mostly used a mechanism that enables writes to the RAM at 0x0, but the reads came from the ROM until an flipflop was set by an out instruction (and reset by Reset). Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583 i...@tsht.de Tel +49 37292 709778 Mobil: 0172 8790 741