A bit of Japanese computer history that gets very little play here in the
US (and I suspect, in other places) is the Japanese TRON project. Started
in 1984, it was intended as an all-encompassing architecture for everything
from commercial data processing to embedded systems:
http://tronweb.super-nova.co.jp/homepage.html
For those of you who are curious, there's a CTRON kernel available for x86
and 6809 at:
http://www.sakamura-lab.org/TRON/CTRON/home.html
Cheers,
Chuck