A specification that defines a new interface to the system board that enables the operating system to implement operating system directed power management and system configuration. Following ACPI allows system manufacturers to build systems consistent with the OnNow design initiative for instantly available PCs

Abbreviated to ACPI, an open industry interface specification that enables management of the amount of power given to computers and peripheral devices.

A system interface that provides a standard way to control power management and Plug and Play functions of the computer hardware. ACPI allows the computer motherboard to describe its device configuration and power control hardware interface to Windows 98. This allows the operating system to automatically turn on and off standard devices, such as CD-ROMs, network cards, hard disk drives, and printers, as well as consumer devices connected to the computer, such as VCRs, TVs, phones, and stereos.

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