TRS-80 Color Computer? That's what I learned 6809 assembly on around 1981, only to be startled how many little things were harder on the Commodore 64's 6502. The extra memory (64k after bank switching!) made up for it though.
I didn't have a multiprocessing platform until 1988 (4.3BSD at college). I wonder how much better I'd be now if I could have gotten my hands on OS-9 earlier.
http://www.paulgraham.com/avg.html
Hacker News itself is written in a new Lisp dialect that resembles Scheme.
https://github.com/arclanguage/anarki/blob/master/lib/news.a...