Inventor of the computer mouse dies

His eldest daughter, Gerda, said by telephone that her father died of was kidney failure.

The inventor first developed a computer mouse in the 1960s and patented his creation in the 1970s, though the notion of operating a computer with an outside tool was ahead of its time. When Engelbart first created the mouse it was simply a wooden shell covering two metal wheels.

Engelbart’s mouse patent had a 17-year life span and so the technology entered the public domain in 1987, meaning that he couldn’t collect royalties on the mouse when it was most in use.

1 bn Approx number of computer mouse that have been sold since mid-1980s 

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