Sir Clive Sinclair - the computing pioneer - has died at the age of 81.

The inventor and entrepreneur passed away at his home in London on Thursday morning, the Guardian reports.

Sir Clive was perhaps best known for bringing computers into people's homes with his ZX models.

His daughter Belinda Sinclair, 57, said: "He was a rather amazing person.

"Of course, he was so clever and he was always interested in everything.

"My daughter and her husband are engineers so he’d be chatting engineering with them."

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Sir Clive, pictured in 2006 (

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AFP via Getty Images)

Sir Clive also invented the pocket calculator and the famous Sinclair C5 electric vehicle - a less successful creation.

The battery-powered tricycle was introduced in 1985 as a means of revolutionising transport, but it failed to prove popular.

In contrast, his ZX models were a huge hit, and provided inspiration for some of today's gaming industry bosses.

Some learnt their craft on the ZX80 or ZX81 - or its rival the Commodore 64 - when they were growing up.

A follow-up model, ZX Spectrum 48K, was also a hit.

Sir Clive - knighted in 1983 - was born in Richmond, London in 1940.

He left school at 17 and worked for four years as a technical journalist to raise funds to found Sinclair Radionics, according to reports.

The Sinclair C5 was launched in 1985 (

Image:

Getty Images)

And it was in the early 1970s that he invented the pocket calculator - a drastic reduction in size at the time.

"He wanted to make things small and cheap so people could access them," his daughter said.

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