Tag: Logitech

The Trackman Marble trackball, released to the market by Logitech in 1995, was the first trackball to use an all-optical motion detection principle, without the use of an optomechanical encoder. This trackball has three keys, which are the standard three mouse buttons, and a ball positioned to be rotated by the right thumb. A regular pattern of dark dots on…

Of course, the main distinguishing feature of the Trackman Marble FX trackball released by Logitech in 1998, is its unusual shape, which provides support for the wrist and gives access to the ball from both sides of the body at once. As planned by the manufacturer, this allows you to move the ball with either one finger or two fingers…