Interesting note. Back in the 80's a company called Northern Telecom used 2900 ALU chips to run the SL-1 PBX. It was very popular in hospitals and large firms where down time was bad.
It had redundant memory and processor cards for failover. And battery backup to stay up during a power failure. Certain alarms caused the switch to dial a reporting center and send the alarm. Programs were stored on a 3M cartridge tape (6150?) where diagnostic programs ran off hours and communication was accomplished via a 300 baud dialup modem and a local hard copy terminal (usually like a DEC LA36). Call detail records were stored on a 9 track tape. -Ken On Fri, Oct 6, 2023, 8:33 AM Geert Rolf via cctalk <[email protected]> wrote: > Quote: > > > I could be remembering incorrectly but I think the Gould PN6080 mini we > had exclusively for third year > > comp sci at Macquarie Uni in the mid/late 80s was 32-bit made up of > AMD2900 family logic (2901 ALU's). > Find attached two pages of the CPU drawings of a Concept 32/67 and > PowerNode 6000. Here the AMD 2901s show up. You remembered correctly! > > Geert Rolf > > owner of a PowerNode 6040 -- see > https://geerol.home.xs4all.nl/DownLoad/UTX-paper.pdf > >
