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Chapter 7. Point and Click: Upgrading Mi... > Upgrade #1: Installing a New Mouse

Upgrade #1: Installing a New Mouse

The mouse is an indispensable part of the modern computer system. Although it's theoretically possible to perform most operations with the arrow keys on your keyboard, for all practical purposes you need your mouse to move your cursor and click the appropriate screen element.

Choosing a Mouse

There are two basic types of mice in use today. The older type is mechanical in operation, using a small hard rubber ball to roll around the desktop along the X (vertical) and Y (horizontal) axes. The newer type is optical, with no moving parts; the mouse uses an LED sensor to perform the X and Y positioning. As you might suspect, an optical mouse is a tad more expensive than a mechanical one, but it will also last a little longer, and won't require you to open up the unit and clean the mouse ball. (And there's nothing more disgusting than cleaning mouse balls….)


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