1996 — Kensington Expert Mouse Trackball 5.0
In 1996, Kensington released its fifth Expert Mouse Trackball. The trackball has undergone a significant redesign. While previous models were fairly classic two-button devices, the Expert Mouse Trackball 5.0 is equipped with a larger diameter ball and four large buttons arranged symmetrically around the ball, similar to flower petals. A similar model was released for the Macintosh, which was predictably…