ZX-80 's cheap -based with built-in and one kilobyte of , launched in 1979. The ZX-80 was originally sold in kit form and was used by many UK hobbyists as a means of learning the basics of computing. Some remember the 1kb ZX-80 for the claim in its advertising that you could control a nuclear power station with it. I was succeeded by the . (1995-11-04)