On Sat, Mar 29, 2025 at 9:46 PM Jon Elson via cctalk <[email protected]> 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
