mark-in-seattle

semi-retired Embedded Computer Systems Designer Programmer. Turn the wayback machine to 1978, my first homebuilt computer was a "Digital Group" non-S100 bus Z-80 based system. The OS loaded from audio cassette tones or paper tape.... those were the very exciting but rather awkward days.

Tennis, Volleyball, local Non-profits, Weema International Clean water project in Ethiopia, Poly-Sci