On 06/07/2017 05:02 PM, Paul Koning wrote: > I'd love to know. I never saw the insides of ECS. There are some > documents on Bitsavers but none that I have seen show the ECS memory > subsystem itself, certainly not at the circuit level.
I found a paper from SJCC 1967 that does a pretty good job of explaining things. The surprising thing is that ECS is a "two wire" system. https://www.computer.org/csdl/proceedings/afips/1967/5069/00/50690729.pdf --Chuck