Apple Macintosh PowerBook 145 - Manual (Page 99)

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.
Chapter 5: Learning More About Your Computer 83
continues .