mouse images

The First Mouse

Invented by Doug Engelbart in the early 1960s at Stanford Research Institute (SRI), it used two moving wheels 90 degrees apart. Most mechanical mice are still made this way, but the wheels are inside, and the ball moves the wheels. (Image courtesy of The Bootstrap Institute.)

One Size Does Not Fit All

The Contour Perfit mouse comes in five right-hand and three left-hand sizes for a perfect fit. It also puts less strain on the "clicking finger," which is a major contributor to carpal tunnel syndrome. (Image courtesy of Contour Design, Inc., www.contourdesign.com)

A Variety of Critters

All kinds of mouse designs have come and gone over the years. (Image courtesy of Palo Alto Research Center (PARC), Brian Tramontana, Photographer.)

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