A mouse with a rubber or plastic wheel ... In addition, the scroll wheel may move from side to side for horizontal scrolling. See touch scroll and scroll bar. THIS DEFINITION IS FOR PERSONAL ...

I ditched my mouse and bought a Magic Trackpad to see how it would affect my workflow. Is it worth making the switch? Here's what I found out.

When dragged with the mouse, the window contents move correspondingly ... Since the advent of scroll mice, which use a wheel for vertical and horizontal scrolling, the scroll bar is being used ...