[Info-vax] Simh Licensing question 3900 vs 780

[Steven Schweda]

JF Mezei wrote:
> I got Simh to boot a virtual 3900 on my Mac.

   Wrong "3900".

> This is a VAXserver 3900 Series, hardware model type 119

   You want a MicroVAX 3900, not a VAXserver 3900.  How you
get that in this emulator, I don't know.  I do know that with
a VAXstation 3100 (early model, at least), if there's no
keyboard plugged in, it calls itself a VAXserver 3100 (and
demands a different VMS license, type "B" instead of type
"D").  As I recall, absence/presence of the graphics card(s)
will change a VAXstation 3200/MicroVAX 3600 back and forth.
For a Q-bus CPU, I thought that the MicroVAX/VAXserver
difference was in the firmware, and not easily changed by the
customer, but I know nothing.