Source : Free On-Line Dictionary of Computing

ZX-80
     
         {Sinclair}'s cheap {personal computer} with
        built-in {BASIC}, launched at the end of January 1980 at a
        computer fair in Wembley, UK.  The processor was an {NEC
        780-C} running at 3.25 MHz.  It had 1KB of {RAM}, externally
        expandable to 16KB, and 4KB of ROM.  It had RF video output to
        a TV, displaying 24 lines by 32 characters of monochrome text.
        An audio cassette recorder was used to save programs.
     
        The ZX-80 was sold in kit form for (pounds)79.95 or ready-built for
        (pounds)99.95.  It 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.
     
        The ZX-80 was succeeded by the {ZX-81}.
     
        {(http://home.t-online.de/home/p.liebert/zx80_eng.htm)}.
     
        {Planet Sinclair (http://www.nvg.ntnu.no/sinclair/)}.
     
        {The Sinclair Story
        (http://www.sincuser.f9.co.uk/046/sstory.htm)}.
     
        (2002-08-30)