27 Mar
2017
27 Mar
'17
7:28 a.m.
On Mar 27, 2017, at 9:15 AM, Ethan Dicks via cctalk
<cctalk at classiccmp.org> wrote:
I don't know of MOS memory appearing in 11/20s as built by DEC, but there's no
reason against it. It's just Unibus memory. It wouldn't have to be 4k either; if
you had a 32kW memory card that should work just fine.
paul
...Haha, those low-brain comments!
User g4ugm: "have core memory... lower value"
Indeed... I'm still kind of annoyed that the 11/20 I rescued from the
dumpster at work in 1984 got mildly "souveniered" before I got it - at
least one core plane went to another employee who wanted a
wall-hanger.
Was there ever a quad MOS memory board for the 11/20? It would have
to be 4K or less, I'd expect, given the era and size of RAM. I know
by a few years later, with the 11/04, MOS was becoming common.