TAILIEUCHUNG - Power Management

Power Management The power-management system in Windows 2000, Windows XP, and Windows Server 2003 is an integrated approach to power management within the whole computer system (for both hardware and software) | Power Management The power-management system in Windows 2000 Windows XP and Windows Server 2003 is an integrated approach to power management within the whole computer system for both hardware and software . This means that the computer system supporting power management must include both hardware and software support for the following functions Minimum time expenses for startup and shutdown. This means that the system may stay in a hibernation state as long as necessary. It may wake up from this mode very quickly this doesn t require rebooting . Efficient and economic power consumption meaning an increase in the working life of the hardware. Devices consume power only when they process a system request or perform operations requested by the user. Devices that aren t in use during a specified time period are switched to a sleeping state and subsequently wake-up as needed. Silent operation. Requirements for power-aware hardware and software are defined by the OnNow initiative. Windows XP and Windows Server 2003 provide this support and both the PC as a whole and each individual device consume the minimum amount of power if the hardware meets the OnNow requirements . Notice that power management and PnP are interrelated and depend on each other. This approach provides the following advantages Intelligent behavior by the system. The operating system and applications work together to operate the PC delivering effective power management in accordance with your current needs. For example applications won t inadvertently keep the PC busy when they aren t necessary they proactively participate in shutting down the PC to conserve energy and reduce noise. Improved robustness and reliability. Higher level of integration. By using the Power Options applet in the Control Panel it is possible to decrease energy consumption by any device installed in the system. However this is only the case if you have an ACPI-compliant computer system. The Power Schemes Tab To start the Power .

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