4 Jul
2013
4 Jul
'13
2:12 p.m.
The Mouse
Trackballs, light pens, and other clever pointing devices were widespread. Then the mouse
was invented. Twice. (Well, at least twice.)
Doug Engelbart reportedly conceived the mouse during a conference lecture in 1961. His
first design, in 1963, used rolling wheels inspired by mechanical area-measuring devices
called planimeters invented in the 1800s.
Engineers at Germany?s Telefunken also invented a mouse in the mid-1960s. First described
in 1968, their version used a rolling ball?essentially a small, upside-down
trackball?which became the standard for decades.
http://www.computerhistory.org/revolution/input-output/14/350
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