View Full Version : UNIX for the DEC PDP8?

March 12th, 2013, 11:16 PM
Was a version of UNIX ever made for the DEC PDP8 with 32k?

Compatibility, can a DEC PDP8 run PDP7 code?

March 13th, 2013, 02:57 AM
As far as I know, UNIX could only ever be run on the pdp-11 and up. I could be wrong about this though.

March 13th, 2013, 06:12 AM

>In 1969, Ken Thompson wrote the first UNIX system in assembly language on a PDP-7, then named Unics as a pun on Multics, as the operating system for Space >Travel, a game which required graphics to depict the motion of the planets. A PDP-7 was also the development system used during the development of MUMPS at >MGH in Boston a few years earlier.

UNIX is 44 years old!!!

March 13th, 2013, 06:50 AM
Well, it ran on the PDP-7, but AFAIK the next one in line for Unix was PDP-11. I don't think it was ported to the PDP-8. The PDP-7 was an 18-bit machine and the PDP-8 a 12-bit one, so that answers the original poster's question about compatibility I think.