[Info-vax] DEC Large Systems

[Bill Gunshannon]

Another question born out of curiosity.

I was looking at a catalog called Large Systems Software
Referral Catalog (Fourth Edition) from 1984.

It lists DECsystem-10, DECSYSTEM-20 and VAX. (notice the
curious spellings used by DEC themselves  :-)

What exactly did the VAX offer or what shortcomings were
seen in the 10 and 20 that caused VAX to become the hero
and the other large systems to go away?

bill