[jdougan]

Every so often I fire up an old Squeak Smalltalk image, put it in full screen mode, and pretend that much of the intervening years never happened.

[xkriva11]

But Squeak is 1996 ;)

[jdougan]

Close enough. I had a copy of MacOS Apple Smalltalk from the 1985 training course I took, and had started a job using Objectworks. Squeak 1.0 is quite close to ST-80.