ACPI is actually a power management standard. ACPI is an acronym for Advanced Configuration and Power Interface. It is generally translated into advanced power management. It is a power management standard jointly developed by Intel, Microsoft and Toshiba.
What is the use of ACPI?
ACPI is part of Windows (starting with Win98). It helps the operating system to properly control and allocate the power of computer hardware devices. With ACPI, the operating system can shut down different hardware devices as needed according to the actual situation of the device. For example, in Win7 or Win8 system, when the system sleeps, the system stores the current information in the memory, and only keeps the power of several key components such as memory, so that the computer is in a high power saving state.
ACPI is powerful, enabling device and processor performance management, configuration/plug-and-play device management, system events, temperature management, embedded controllers, and SMBus controllers.
ACPI indicates that the advanced configuration and power management interface ACPI can achieve the following functions: 1. The user can make the peripheral switch at the specified time; 2. The user who uses the laptop can specify that the computer enters the low power state under low voltage to ensure Important applications run; 3, the operating system can reduce the clock frequency when the application time is not high;
4, the operating system can allocate energy according to the specific needs of peripherals and motherboards; 5, when no one uses the computer can make the computer into a sleep state, but to ensure that some communication devices are turned on; 6, plug and play devices are inserted
