Reply 35060 of 40040, by babtras
Not a computer, but the evolution of calculators and adding machines led directly to the advent of microprocessors so I consider them a part of the computer heritage.
Thrift store for $5. Funny bit is, I originally saw it on a Facebook auction page. Someone else wanted it more than I did and bid it beyond what I wanted to pay. 3 weeks later the same unit is at the thrift store for $5. It seems someone thought it was something else.















