View Full Version : Coherent Sources Released under 3-Clause BSD License

January 8th, 2015, 01:36 PM
Coherent, a V7 Unix Clone from the 1980's for the PC, was just released under a 3-clause BSD license.

Sources available at the following link:


I used to run Coherent back in the day before I discovered Linux. For the time, it worked really well, despite not having any built in networking except UUCP. I've taken a quick look; it looks very complete and has a lot of interesting information.


January 12th, 2015, 03:42 PM
Very cool! We live in interesting times...

January 12th, 2015, 04:27 PM
I liked Coherent (even more because one of my great lusted-after machines, the great Commodore 900, ran it). Too bad about the networking.

January 15th, 2015, 05:06 PM
Heh... I was reading this post and mistook Coherent for Convertent Technologies that ported unix to the 68010 in the AT&T Unix pc and relatives. Stumbled on MGR in the process http://hack.org/mc/mgr/ ... looks interesting it ran on Coherent as well and apparently was alot more lightweight than X on slower machines (basically anything before Sparc based workstations came out apparently)

January 25th, 2015, 11:51 AM
Thanks, I didn't know about MGR.

January 25th, 2015, 09:53 PM
This got some bells making faint noises.. unless my memory is off track MGR was running on Linux very very early in the history of Linux, until somebody got X11 up and running (an early version of X11 which I believe had an 'Y' somewhere in its name, but I can't find any reference through my google-fu).


January 26th, 2015, 12:05 AM
It seems my memory was correct about this one - here is an old page refering to mgr 0.69 for Linux (same version as on that hack.org page): http://www.tldp.org/HOWTO/archived/MGR-HOWTO/MGR-HOWTO-3.html

I never used it myself back then though. But I can imagine it'll be useful for Coherent.