From mboxrd@z Thu Jan  1 00:00:00 1970
From: robert@timetraveller.org (Robert Brockway)
Date: Mon, 12 Feb 2018 10:31:46 +1000 (AEST)
Subject: [TUHS] Why BSD didn't catch on more, and Linux did
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On Sun, 11 Feb 2018, Derek Fawcus wrote:

> Note that CDOS 286 (aka FlexOS) was a distinct product from
> Concurrent DOS.  The former written in C; the latter in assembler
> and seemingly derived from Concurrent CP/M.

Also not to be confused with FLEX, a completely different OS.  That was 
what I initially thought you were talking about but the clue was you 
mentioned FlexOS was multi-user.  The original FLEX was single user.

https://en.wikipedia.org/wiki/FLEX_(operating_system)

Rob