![](https://archivesit.org.uk/wp-content/uploads/2019/03/clive_sinclair-273x273.jpg)
Sir Clive Sinclair
Sir Clive Sinclair is a well-known British entrepreneur and inventor of the world’s first ‘slim-line’ electronic pocket calculator in 1972 (Sinclair Executive) and the ZX80, ZX81 and ZX Spectrum computers in the late 1970s and early 1980s, amongst many other things.