2. Open the PowerBook icon.

(Click the icon once to select it, then choose Open from the File menu. Or double-click the icon.)

The PowerBook control panel appears. You drag the Battery Conservation slider to the left to improve performance (but battery power is used up more quickly) or to the right to conserve power (but the computer may work more slowly).

For more information on how to use the PowerBook control panel, go to the power management chapter in Part III of this book.

Use Balloon Help

Balloon Help explains icons, menus, commands, and other objects on the Macintosh screen, using balloons similar to those in comic strips. Each balloon points to the object it explains.

Many Macintosh programs also have Balloon Help.

Turn on Balloon Help

1.Point to the Help icon near the right end of the menu bar.

2.Press to pull down the Help menu.

3.Drag to highlight the Show Balloons command, then release the trackball button.

When Balloon Help is turned on, balloons containing explanatory text appear next to objects that you point to on the screen.

continues .

Chapter 5: Learning More About Your Computer 83

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Apple 145 Use Balloon Help, Turn on Balloon Help, Open the PowerBook icon, Many Macintosh programs also have Balloon Help