> On Mar 27, 2017, at 9:15 AM, Ethan Dicks via cctalk <cctalk@classiccmp.org> > wrote: > >> ...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.
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