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I need jumper infor for a Dataram DR118A 16kx12 core for PDP-8e/8f/8m. I need info on Either P1 or TB1 to set addressing for the 16kW module. I'd like to set it up as the first 16K in the system. Allison

Over the years there were many variations of extended addressing for mostly Z80 systems using MMU or bank switching. We also had Z180/64180, Z280 and other variations with their paging or MMU logic to get beyond the 16 bit address range. most were only compatable with that makers design and...

I happen to have one of these. It's a single board computer based on the Intel 8048 family of microcomputers. The Board has a keypad, led display and interfaces for replays, cassette tape, TTY and misc user IO. The basic machine is a 8035 with 1k rom monitor and 1k of user program ram. In...

I'm curious what other OSs are out there that have available sources for exprimentors to play with. I have and have used CP/M and NS*dos for over 25 years, occasionally ran ISIS on Intel MDS but there are others. I'm curious what NON CP/M OSs are there. Since I'm playing with hardware I may...

I have two 32k EpromII s100 cards (Tanner computers) and need a schematic plus chip locator. They use up to 16 2716 Eproms or 6116 Sram. Any help would be appreciated. Allison

Allison Been on the usenet for about 18 years, COMP.OS.CPM. Collection of operational hardware: PDP-8f Intersil sampler (6100 chipset) 6120 based board, homebrew 2 Decmate-IIIs OS/278 2 LSI-11/03 rx02 3 PDP11/23 various hardware configs BA11 with 11/23...