What are the important power modes that ACPI supports?

What are the important power modes that ACPI supports?

Rating:

ACPI enables a computer to manage power efficiently. It supports two important power modes: Standby and Hibernate. In Standby mode, the computer does not shut down completely. Instead, the monitor and the disk drives turn off. As a result, the computer consumes less power. When a user moves a computer's mouse or presses any key on the keyboard, the operating system brings back all the offline devices online. On the other hand, in Hibernate mode, the operating system stores the current contents of the primary memory to the hard disk and shuts down the computer completely. A user will need to power on the computer from the CPU to restore the previous settings.

Note: In the Standby and Hibernate modes, the current settings are retained by the operating system. Any of the applications that were opened before putting the computer in Standby or Hibernate mode will remain open unless the user manually closes them.

Rating: