[erlang-questions] Erlang on VAX
Richard A. O'Keefe
Fri Apr 8 01:47:13 CEST 2016
(note the date) early 750s came with "256 kB of ECC MOS memory"
and the machine allowed (18.104.22.168) "up to ... (2 Mbytes of main memory)"
and repeats (22.214.171.124) "the maximum system configuration of 2Mbytes".
This would be the kind of thing DEC would have expanded, but even
so, I expect the machine would have started at 2MB rather than 4MB.
16 MB would have been *enormous* for a 750; people needing that
much memory would have done well to buy a faster machine.
The 780 was by definition 1 Vax Unit of Processing and did about
500,000 instructions per second. The 750 was 0.65 VUPs, so
about 300,000 instructions per second.
For what it's worth, the Edinburgh Regional Computer Centre had
a timeshared ICL 2980 in 1986. I don't know how much memory
it *did* have, but it *could* have at most 8MB. That was the
main computing service for Edinburgh University, and was also
used by a couple of other places. When I was in Edinburgh in the
early 80s they had a DEC-10 with at least a MB of memory.
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