Douglas Engelbart is the first man who founded the field of human-computer interaction and invented the computer mouse.
On December 9, 1968 the first computer mouse was introduced at the show of interactive devices in California.
The first computer mouse looked like a hand-made wooden box and inside it there were two perpendicular wheels and a button. When the mouse was moving, the wheels moved on the table and it was possible to learn the direction and the size of movement of it. These data were transformed into the movement of the mouse cursor on the screen.
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