[Info-vax] Prices of Microvax 3100's

[John Wallace]

On May 3, 2:59 pm, koeh... at eisner.nospam.encompasserve.org (Bob
Koehler) wrote:
> In article <0c85168b-2bb2-413c-b27a-214935e8d... at w7g2000vbg.googlegroups.com>, AEF <spamsink2... at yahoo.com> writes:
>
>
>
> > So why not run Charon or SIMH? Speaking of which -- and please pardon
> > me if this is a stupid question -- do these things run as a separate
> > process or do they take over the entire machine? I don't see why it
> > can't be the former. Just making sure.
>
>    SIMH is just an ordinary application as far as I've seen.  It can
>    be a significant CPU load, but I've been able to timeshare with it
>    on all the desktop OS I've tried it with.

SIMH can be greedy, as can others, but the main issue with coexistence
is likely not the behaviours of the VMS-hosting emulator application,
but the behaviour of Windows and Windows-based applications on Windows
systems, and in in particular the impact of any undesirable behaviour
on VMS and the applications in the VMS environment. (I hope that
sentence made sense).

That's why from time to time you see people round here asking about
Linux versions of the emulators and why at least one of the emulators
has a version that runs on QNX, the realtime OS. If the host OS has to
be Windows then it's presumably safest to treat the Window box as a
single purpose box but that isn't really much of a guarantee of good
behaviour, especially in the presence of the stuff usually associated
with a Window box of any kind.