Delete comment from: Ken Shirriff's blog

Paul said...

Hi Ken,

Great blog..brings me back quite a few years.

I can state with authority that the Prime (spelled Pr1me) computers that were TTL all used the 181 (what else would you do?)

That would be the P400, P750, P850 primarily.

The P9950 (which I worked on) was the first machine built from (10K) ECL and used the 10181. Fairly soon the LSI level bumped up and I never used them again.

-paul

Aug 15, 2018, 4:18:45 PM

Posted to Inside the vintage 74181 ALU chip: how it works and why it's so strange