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What is ACPI?

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What is ACPI?

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ACPI stands for the Advanced Configuration and Power Interface specification. ACPI defines hardware and software interfaces that enable OS-directed configuration and Power Management (OSPM) to enumerate and configure motherboard devices, and manage their power. ACPI, in conjunction with OSPM, replaces APM and PNPBIOS, as well as the MultiProcessor (MPS) specification. ACPI 1.0 was released in 1996. The ACPI 2.0 Specification was released in 2000, and ACPI 3.0b was released in 2006. All versions of the specification are available for download from the ACPI website at www.acpi.info.

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