[fa.info-vax] MicroVMS V1.0 vs VMS V4.0

info-vax@ucbvax.ARPA (02/20/85)

From: lionel%eiffel.DEC@decwrl.ARPA  (Steve Lionel)

MicroVMS V1.0 is a repackaged version of VAX/VMS X2M9, which was the
second field test version of VMS V4.0.  MicroVMS V4.0 (there were no
V2 nor V3) is exactly VAX/VMS V4.0, repackaged.  By repackaging I mean that
some files that are not relevant to MicroVAXen (for example, MASSBUS
drivers) are not present, some command files have been added or modified to
make it easier to use and the help is reorganized somewhat.  Basically
what you give up is full VMS' ability to take a VMS pack and run it on any
VAX processor, in exchange for a much smaller and cheaper system.  Also,
you buy various parts of the system separately, so if you don't need
DECnet, you need not buy it.

Yes, patches for VMS V4.0 will work on MicroVMS V4.0.