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Part 1: Getting Oriented > Mice and Other Pointing Devices: Making Quick Moves

Chapter 18. Mice and Other Pointing Devices: Making Quick Moves

If you look closely at a mouse, you'll see how it got its name: It's about the size of a little rodent, and its cord resembles a tail. (Unless it's a cordless mouse, and then, I suppose, it looks like a tailless rodent.) Usually, a small ball in the bottom of the mouse tracks the mouse's movement on the desktop and communicates that information to the computer, which then moves the on-screen pointer in the same direction. But the new optical mice, such as the Microsoft IntelliEye, don't have a ball or any other moving parts—instead, they have a sensor that scans surfaces electronically to track movement.


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