[Info-vax] OT: IA-128 ???

[BillPedersen]

On Oct 20, 4:18 pm, John Wallace <johnwalla... at yahoo.co.uk> wrote:
> On Oct 20, 8:06 am, "Bart.Z... at gmail.com" <bart.z... at gmail.com> wrote:
>
> > On Oct 19, 3:19 pm, koeh... at eisner.nospam.encompasserve.org (Bob
>
> > AFAIK, only RSX-11M+ and RSTS/E supported separate I and D space.
>
> > Bart
>
> If I remember rightly, I/D space was also implemented on RSX11M+'s
> close (but rarely mentioned) relative, IAS.http://www.john-a-harper.com/ias.html

Actually, IAS was a relative of RSX-11D, not M+.  M+ came out of M...

And, yes, IAS support I/D Space.

It also supported a timesharing environment with a real scheduler that
understood timesharing requirement.  IAS also support process control
operation and "real-time".  But to be honest 11M, 11M+ and 11S all
supported "real-time" better than 11D.

Anyway, a bit of nostalgia.  I did system programming on all of these
once upon a time.

Bill.