Inside an IBM/Motorola mainframe controller chip from 1981

Submitted ⁨⁨5⁩ ⁨months⁩ ago⁩ by ⁨misk@sopuli.xyz⁩ to ⁨retrocomputing@lemmy.sdf.org⁩

http://www.righto.com/2024/07/ibm-3274-keystone-chip.html