30 Mar
2025
30 Mar
'25
2:05 a.m.
On Sat, Mar 29, 2025 at 9:46 PM Jon Elson via cctalk
<cctalk(a)classiccmp.org> wrote:
In the "old" days, such as the 1970's,
pretty much any
DEC-manufactured peripheral was supplied as a bunch of cards
that plugged into a specific backplane section, generally 9
slots, I think. A couple double-wide slots were for the
Unibus in and out connectors.
There were plenty of 9-slot system unit peripherals, but there were
also 4-slot system unit peripherals in the early days.
One I have myself is the KE11-A integer math unit.
-ethan