The Evolution of The Apple Mouse
As illustrated by X-rays, this brief history of the Apple mouse shows how its design evolved from wired electro-mechanical trackballs to wireless optical/laser tracking mechanisms; from a two button to a wireless multi-touch design; from a rectangular block shape to trapezoidal, circular, and elliptical shapes becoming increasingly more ergonomic.
—Herminso Villarraga-Gómez Nikon Metrology, Inc.
