On 5/11/19 4:14 PM, Warren Toomey via cctalk wrote: > I'm building my own 8-bit CPU from TTL chips, and this caused me to think: > how were 32-bit minis built in the late 70s and early 80s? In particular, > how was the ALU built? I know about the 74181 4-bit ALU, and I know (from > reading A Soul of a New Machine) that PALs were also used.
What logic family? There were some minis built with ECL for example. --Chuck
