The ZX Spectrum was released in the United Kingdom in 1982.
The machine was designed to be affordable and compact. Video output was transmitted to a television instead of a monitor, and software was loaded and saved onto cassettes.
It played a very important role in the early history of personal computing and gaming. Until the Raspberry Pi, the Spectrum kept the title of Britain's best-selling computer across three decades.
It stopped being produced in 1992.