Touch pads

Laptop Repair Made Easy

Laptop Repair Made Easy

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One alternative to mice that's particularly common on notebook computers is the touch pad. This device is a small, flat pad, roughly 2-3 inches on a side. You touch the pad and move your finger about on it to move the pointer on the screen. Touch pads include one or more buttons that work just like mouse or trackball buttons. The touch pad shown in Figure 15.9, which is integrated into a notebook computer, includes two regular buttons and several auxiliary buttons to control various computer features. Such auxiliary buttons might or might not be usable in Linux.

Part IV

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Figure 15.8

Trackballs allow you to move the on-screen pointer by rolling a ball that's accessible to one or more fingers.

Figure 15.8

Trackballs allow you to move the on-screen pointer by rolling a ball that's accessible to one or more fingers.

Figure 15.9

Touch pads don't vary much in appearance, although different models place their buttons in different locations relative to the body of the pad.

Chapter 15

Although touch pads are most commonly found on notebook computers, you can purchase touch pads for use with desktop computers. One common arrangement is a keyboard that includes a touch pad. These devices share one of the principal advantages of trackballs: They consume little desk space. They also require little in the way of cleaning, which makes them appealing for use in harsh environments. One drawback to touch pads is that they don't actually detect touch, in the sense of pressure. Instead, they sense the electrical characteristics of your finger. Therefore, they might not work if your finger is dirty, or if you're wearing gloves.

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The Ultimate Computer Repair Guide

The Ultimate Computer Repair Guide

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