22 May
2018
22 May
'18
4:22 a.m.
In case people are wondering, I found this
https://www.quora.com/What-is-Unix-and-why-is-it-important which contains a
blue-oval chart that shows it being derived from CB Unix 3. But that the
sources were also different than the ones for VAXen, etc. At least that's
the implication here. Is this chart in error?
Warner
On Mon, May 21, 2018 at 2:30 PM, Clem cole <clemc(a)ccc.com> wrote:
It contains Features from CB Unix but was not the same
thing. In
particular shared memory and semaphores were contributed by Dale’s team but
it was PWB 3.0 that was rebranded system III and then updated and released
by USG aka summit eventually as sys V. System IV was not released outside
the bell system I’m not sure if it ever went out inside.
Sent from my PDP-7 Running UNIX V0 expect things to be almost but not
quite.
On May 21, 2018, at 1:22 PM, Warren Toomey
<wkt(a)tuhs.org> wrote:
I had an e-mail from someone who said:
PDP-11 Sys V is apparently derived from Unix CB 3.0, not from the
normal route... Or so says the great interweb :)
I found a family tree that suggests this. Know anything about this?
I hadn't heard of this before, can anybody substantiate or negate this
assertion, or shed more light on the genealogy od PDP-11 System V?
Thanks, Warren