22 May
2018
22 May
'18
4:48 a.m.
@Warner Losh - the picture with the blue balloons is so wrong.... There
are a ton of errors, starting with claiming PWB 1.0 came from Fifth Edition
On Mon, May 21, 2018 at 3:22 PM, Warner Losh <imp(a)bsdimp.com> wrote:
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