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Chapter 1. Getting Started with Mac OS X... > Sleeping, Restarting, and Shutting D...

Sleeping, Restarting, and Shutting Down

When you finish working on your computer, you can put your computer to sleep for a little while or shut it down for longer periods of inactivity. Sleeping causes your computer screen to go blank and halt the spinning of your hard disk. Shutting down your computer causes Mac OS X to properly save and close all open files, close all open windows, quit all running applications, and finally, turn off the Macintosh itself. If you turn off the computer by pushing the power switch while Mac OS X or other applications are running, you could lose important data and cause system problems; shutting down correctly avoids these potential problems. If your computer starts to have problems, such as a unusual slow down or applications stop working, try to restart or reset, your computer.

Sleep, Restart, or Shut Down

When you're done working on your computer, do one of the following:


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