The Sinclair ZX81 had no sound, no colour, no high-res graphics, a mere 1KB of memory and an almost useless membrane keyboard. It was described by reviewers as “toy-like”. So, why did something so incapable of being used as a real computer, sell over 1.5M units? And why was it the toast of North America in 1982, only to be ignored just a year later? If you'd like to support what I do please consider supporting me below: PayPal: https://www.paypal.com/paypalme/bigcartv Big Car merch: https://teespring.com/stores/bigcartv Link to my other channel - Big Car: https:// / bigcar2 Sources: ZX81 history: https://web.archive.org/web/201202180... ZX81 launch: https://archive.org/details/PersonalC... ZX81 manufacture: https://archive.org/details/SinclairU... Clive Sinclair interview: https://archive.org/details/your-comp... ZX81 review: https://archive.org/details/PersonalC... ZX Printer review: https://archive.org/details/PersonalC... ZX81: https://en.wikipedia.org/wiki/ZX81 T/S 1000/1500: https://en.wikipedia.org/wiki/Timex_S... ZX81 clones: https://en.wikipedia.org/wiki/List_of... 1KB chess: https://en.wikipedia.org/wiki/1K_ZX_C... #littlecar