Engelbart thought up the idea for this device in 1961.
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It was nicknamed the mouse because the tail came out the end, Engelbart revealed about his invention.
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Two years previous to this publication,
English had assisted Douglas Engelbart in creating a computer pointing device invented by Engelbart.
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Engelbart developed what is the direct ancestor of the modern
mouse in the 1960s as part of an ongoing project to discover the most efficient way to interact with a computer.