Sir Clive Sinclair, the inventor and entrepreneur who popularized home computers, has died at the age of 81. He was best known for creating the ZX Spectrum and other affordable computers that brought programming to the masses. Sinclair's products had a significant impact on the development of the British games industry and inspired many to pursue careers in programming. He left behind a legacy of innovative designs, including the pocket calculator and the Sinclair C5 electric trike.