History
In 1984, Ted Selker, a researcher at PARC, worked on a pointing stick based on a study that a typist needs a relatively long 0.75 sec to shift the hand from the keyboard to the mouse, and comparable time to shift back. Selker built a model of a device that would minimize this time. It was only three years later, working at IBM, that Selker refined his design, resulting in the TrackPoint product on which IBM received US patents in 1996.
Read more about this topic: Pointing Stick
Famous quotes containing the word history:
“There is a history in all men’s lives,
Figuring the natures of the times deceased,
The which observed, a man may prophesy,
With a near aim, of the main chance of things
As yet not come to life.”
—William Shakespeare (1564–1616)
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—William Howard Taft (1857–1930)