Understanding Power Management

The goal of power management in Microsoft Windows is to maximize energy efficiency. This is accomplished by minimizing the amount of power used while automatically providing required performance on demand. Previous versions of Windows delivered improvements in the area of power management, such as hibernation, standby, and the ability to power off monitors and hard drives. Windows Vista builds on these advances with new power-management capabilities, including:

  • Improved support for Advanced Configuration and Power Interface (ACPI) 2.0. In addition, Windows Vista also provides support for selected features of ACPI 3.0.

  • Standard (non-ACPI) Hardware Abstraction Layers (HALs) are no longer supported in Windows Vista; only ...

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