Topic summary
Advanced Configuration and Power Interface
Extracted from the Wikipedia article ACPI.
Advanced Configuration and Power Interface (ACPI) is an open standard for operating system, directed configuration and power management. Launched in December 1996 and first available in Windows 98 and Windows 2000, ACPI aims to replace Advanced Power Management (APM), the MultiProcessor Specification, and the Plug and Play BIOS (PnP) Specification. ACPI brings power management under the control of the operating system, as opposed to the previous BIOS-centric system that relied on platform-specific firmware to determine power management and configuration policies. The specification is central to the Operating System-directed configuration and Power Management (OSPM) system. ACPI defines hardware abstraction interfaces between the device's firmware (e.g. BIOS, UEFI), the computer hardware components, and the operating systems.