All you needed to get up and running with the Sinclair ZX81 was a small portable TV. The brief manual told you everything you needed to know and possibly everything there was to know. There was no disc drive but you could save programs and data to a cassette, and also buy programs (mostly games) on cassette. You could also buy a “RAM pack” to boost the memory to 16K, and a strange little printer. Photo: Wikimedia
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