This device is just like the Logitech TrackMan Wheel except that it comes with a double-A battery and a receiver in place of a cord. Plug the receiver into your computer's USB or PS/2 port, and press ...

A well-designed trackball is easier on your wrist and forearm than a mouse, because you don't need to move it around your desk. Plenty of trackballs are on the market, but few are in a class with the ...