9 Feb
2016
9 Feb
'16
8:22 a.m.
On Tue, Feb 9, 2016 at 7:55 AM, tony duell <ard at p850ug1.demon.co.uk> wrote:
I don't find that surprising. At the time they were designing the
KA730, 1M boards were obviously available (or imminently available)
and with 5 memory slots vs 8 in the KA750, I'm sure they never
expected anyone to want to use up a slot with a tiny board, so why
support them.
As part of this thread, I was digging around for context and ran
across ads in ComputerWorld and such as archived on Google Books. The
ads indicate a reseller price of $4,000 for one MS750CA (1MB board) in
1984. By the time I was buying them (for work) around 1989 I think,
ISTR prices around $400-$600
I don't
know if
you could use the 256K boards (populated with 4116s) in the 11/730 due
I am pretty sure (havng read and re-read the printset, I am restroring
an 11/730 at the moment) that you can't use 256K boards in that machine.
The memory address decoder (which IIRC is on the MCT board, part of
the CPU) assumes 1M boards. Anyway, as you say, you would not want that little
memory.
No good reason to.
-ethan