20 May
2009
20 May
'09
7:59 p.m.
On Wed, May 20, 2009 at 3:24 PM, Tony Duell <ard at p850ug1.demon.co.uk> wrote:
Now that you mention it, I think I have a National Semiconductor-made
memory card for a VAX-11/750 or -11/730. (same memory bus architecture
as an 11/70, but supports individual cards larger than 256K with the
right wires on the memory backplane and the right memory controller
card).
-ethan
National
Semiconductor actually made calculators back in the 1970s...
And add-on memory for PDP11s, etc