IntelliMouse is a series of computer mice from Microsoft. The IntelliMouse series is credited with a number of innovations;[1] Microsoft was among the first mouse vendors to introduce a scroll wheel,[2] an optical mouse, and dedicated auxiliary buttons on the side of the mouse. They use IntelliPoint drivers and its main competitor through the years has been Logitech.
In 1995 Mouse Systems, owned by KYE since 1990, produced the world's first mouse with a scroll wheel. It sold as Mouse Systems ProAgio and Genius EasyScroll under Kye. [...] Microsoft seized the idea and marketed the concept as part of their IntelliMouse® in 1996.