Doug Engelbart, who invented the computer mouse, has passed away aged 88.
Engelbart developed the tool as a wooden shell covering two metal wheels in the 1960s.
He studied electrical engineering at Oregon State University and was a radar technician during World War II.
This was followed by a short stint at Naca, Nasa's predecessor, as an electrical engineer, before pursuing a doctorate at the University of California.
At a famous presentation in San Francisco in 1968 he showcased the mouse with a demonstration for the first time.
Engelbart did not make a great deal of money from the device because its patent expired 26 years ago, before the mouse earned global popularity.
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