Mac OS X 10.2 Fast Shutdown method

If you have a PowerBook G4 or ibook, you may be able to use the power button to allow the computer to run out of shutdown, reboot, or allow the Mac to go to sleep in the dialog box.

But don't think this is a laptop-only privilege, and a desktop Mac can do the same. As Scott Kelby in his book Mac OS X Killer Tips, you can do this simply by using the media exit key on the keyboard (the key to the upper right corner of the keyboard that is usually used to exit the disc):

"You can see the same dialog box just by pressing the control+ media exit key." When the dialog box appears, you can press R (Estart) to reboot, S (leep) to enter sleep mode, or press C (Ancel) to cancel. Very fast and convenient. ”