[TUHS] shared memory on Unix

Marc Rochkind rochkind at basepath.com
Thu Feb 2 04:07:12 AEST 2017

OK, just remembered. That acronym for the Columbus shared memory was MAUS,
pronounced "mouse". Multi Access User Space.


On Wed, Feb 1, 2017 at 11:01 AM, Clem Cole <clemc at ccc.com> wrote:

> On Wed, Feb 1, 2017 at 12:24 PM, Joerg Schilling <schily at schily.net>
> wrote:
>> Wasn't shmget() and friends added vor SysV past 1982?
> ​AT&T Unix naming get's weird as they hire marketing people that don't
> quite get it.
> V6 -> PWB [1.0 ~77] ---|
>    |                           |
>    +  UNIX/TS[~79] --      +​ PWB 2.0 [~79]  ----- PWB 3.0[~80]  <--
> internal name of release
> The "UNIX Support Group" - aka Summit - is supposed to be creating UNIX
> flavors for the different labs and operating companies and Research is to
> go back to doing research.  Thus PWB 3.0 is supposed to start to be a
> "superset" of the features added by the different labs, Columbus, IH,
> *etc*...   But it took a few spins before all the different hacks,
> additions were agreed too and added.   There was much fighting inside of
> BTL as we see outside.
> IIRC an unreleased version of PWB 4.0 had the Columbus features in it as
> Horton points out.
> Note that AT&T Marketing renames PWB 3.0 -- System III thinking that
> "Programmer's Workbench" would be a bad name to sell against IBM, and this
> it the first non-research system for License outside of the the labs.  If
> you look at the documentation set, et al - it all says PWB 3.0 on the cover
> and throughout   Also, the BSD vs AT&T wars basically start around this
> time....
> Roll the clock forward and here is an new problem the PWB 4.0 moniker was
> used internally,  but AT&T marketing want to get rid of the PWB term - so
> the decree comes down the next release is to be called System V.
> Certainly by this point, the Columbus changes had been folded into the
> main line kernel in Summit by then.   But as I said, my memory is what made
> it into SystemV and what was in CB-UNIX were similar but a little different.
> Clem
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://minnie.tuhs.org/pipermail/tuhs/attachments/20170201/25e84346/attachment.html>

More information about the TUHS mailing list