3B1s and "old school" UNIX, was Re: [HECnet] US Seller with some interesting stuff

Hello! He's thinking of the WE designed processors that were used in the later units. They were not bit slice but were fabricated using the normal methods. Not surprisingly enough the devices could not even be sold separately. They were ran an appropriately written release of UNIX as native. One of the first applications for them and the later models was in running the first and second generation Electronic Switching Services otherwise known as exchanges. There's a whole article online someplace on the RT extensions that needed to be written out and added to UNIX for that application. Hi Greg, Maybe it wasn't bit-sliced then.. interesting, but this seems to fit as it was definitely: a) a different ISA to the m68k stuff. Wouldn't even disassemble. b) telco gear for very large PABX/exchange switching/management c) UNIX (tm) based. Al.