Advanced Configuration and Power Interface (ACPI) is a set of specifications created by Intel, Microsoft, and Toshiba to allow operating systems to configure hardware components and manage power. Some synonyms for ACPI include Power Management, Energy Management, Advanced Power Management, and System Management. These synonyms are often used interchangeably with ACPI, but they refer to the same idea of managing system components and power. ACPI is an essential component for modern computer systems, as it allows for efficient power management and can help extend the life of the computer system's components. Overall, ACPI and its synonyms are critical to ensuring a smooth operating system and optimal performance of computer systems.