Combined computer keyboard and mouse, with the keyboard moved over the desktop to control cursor movement on a screen so that a user does not have to constantly switch between keyboard and mouse

摘要

Computer keyboard has a keyboard housing and is mounted on at least three ball bearings so that it can be displaced over the desktop to take on the function of a computer mouse. The keyboard has a laser scanning function and can be switched between mouse and trackball functions. It can also assume a click function.