When you are finished using the computer, click +, then select one of the following options:
Log out: Logs you out of the current session and returns you to the Login screen.
Shut down: Logs you out of the current session, then turns off the computer.
Restart the computer: Logs you out of the current session, then restarts the computer.
Suspend the computer: Puts your computer in a temporary state that conserves power. The state of your session is preserved, however, including all applications you have running and all documents you have open.