Important: Drivers are required to save whatever is necessary to restore state after a loss of power.The Energy Saver control panel has a checkbox that lets the user specify whether or not to save memory before the system goes into Sleep mode. The default is yes. The Energy Setting control strip module has two new items: one saves memory to disk and goes to sleep; the second saves memory and shuts off. When the user presses the power key, the computer starts up and automatically reloads the RAM contents from the hard disk. The computer goes through a process similar to a normal boot, but it does not display the startup screen or the extension icons. It restores the prior state and resumes execution of whatever application was executing at the time the power was lost. Sleep and wake queues are executed for Suspend and Resume.