17 May
2025
17 May
'25
3:48 a.m.
On Fri, May 16, 2025, 7:33 PM Henry Bent via cctalk <cctalk(a)classiccmp.org
wrote:
On Fri, 16 May 2025 at 20:33, Jonathan Stone via
cctalk <
cctalk(a)classiccmp.org> wrote:
VAX eln realtime applications?
Warner
However a pure Q22/Q22 backplane will not support any Microvax II or III
memory cards, as they use CD slots as part of the Private Memory
Interconnect (PMI) to the CPU. You could run a KA630 with just the 1MB on
the CPU board; but it'd be even more constrained than a microvax
2000/vaxstation 2000 with just the 2MB onboard memory.
Does anyone know what the reasoning behind the 1MB on the KA630 board was?
Just enough for a realtime application, maybe, or a single tinkerer? I
can't see running much of anything serious in 1MB on a uVAX II in 1985 if
you were really trying to take advantage of the hardware, so I wonder if
the idea was that the board would have other applications.