Datasheet

10
Part I: Getting Started with Mac OS X 10.7 Lion
Tip
When shutting down, watch the desktop until the screen goes blank, which lets you know the Mac has actually
shut down. When you shut down Mac OS X, it first tries to quit all active applications, but applications may
not quit if they have unsaved documents. In this case, the applications present a dialog box asking if you want
to save the unsaved documents, and the shutdown is delayed. If you walk away, you’ll come back only to find
that the shutdown didn’t complete, and then you have to address the unsaved documents, wait for the Mac to
shut down, and start it again to be able to use the Mac—a process that can be quite frustrating.
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Note
You can use one other method to shut down the Mac: a forced shutdown. This can be handy in the event of a
system crash, when there is no other way to shut down or restart the Mac. To use this method, simply hold
down the power button for at least five seconds. However, you should avoid a forced shutdown if at all possi-
ble: Any unsaved document data is lost, and it is possible to cause damage to the system.
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Restarting the Mac
You need to restart Mac OS X far less than many other operating systems such as Windows.
That’s because Mac OS X is very stable and doesn’t require a restart to clear its memory as
Windows does. Plus, many applications can be installed in Mac OS X without requiring a
restart to activate their features. Still, sometimes you need to restart the computer after
installing some software updates (such as Apple’s Mac OS X software updates) or when
installing some applications.
You can use the following methods to restart the Mac:
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Press the power button on your Mac (or on certain Apple-branded monitors). When
the confirmation dialog box appears, click Restart.
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If your keyboard has the Eject key, press Control+Eject. In the dialog box that
appears, click Restart.
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If your keyboard has the Eject key, press Control+Ô+Eject; the Mac begins to restart
immediately.
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Log out and click the Restart icon button.
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Choose Restart. When the confirmation dialog box appears, click Restart or press
Return—or simply wait 60 seconds and let the Mac restart automatically.
During the restart process, Mac OS X tells all open applications running in the system to quit.
If an application has an open document with unsaved changes, it asks you if you want to save
the changes before quitting. Only when all the applications have quit does the Mac shut down
and then start back up again.
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