r҉ustic cy͠be̸rpu̵nk🤠🤖
Timex Sinclair 1000 from 1982 which ran the venerable Zilog Z80 CPU, clocked at 3.25MHz, came with 2KB RAM. The OS was Sinclair BASIC, which was actually pretty functional for its time
As far as I could find, at $99.95 when it came out, this is so far the cheapest "home computer" that isn't a mobile device to date
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