3 ms·
I stand corrected. Was it one of the project innovations though? Can't seem to recall ever seeing that myself on commercial period hardware.
by varjag 4y ago
I stand corrected. Was it one of the project innovations though? Can't seem to recall ever seeing that myself on commercial period hardware.
- kens 4y agoIBM used multi-layer PCBs for the IBM System/360 (1964) so they were in use for some applications. But most electronics seemed to stick with two layers at most for a long time.