ACPI (Advanced Configuration and Power Interface) is an open industry specification co-developed by Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba.
ACPI establishes industry-standard interfaces for OS-directed configuration and power management on laptops, desktops, and servers.
ACPI evolves the existing collection of power management BIOS code, Advanced Power Management (APM) application programming interfaces (APIs, PNPBIOS APIs, Multiprocessor Specification (MPS) tables and so on into a well-defined power management and configuration interface specification.
The specification enables new power management technology to evolve independently in operating systems and hardware while ensuring that they continue to work together.
