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ONNOW DESIGN INITIATIVE ARCHITECTURE SUMMARY
• Enhanced core operating system functionality for
power management. In the OnNow architecture, the operating system can
direct power management by coordinating activities at all levels and
defining the power-state transitions for the overall system. Microsoft
will enhance future Windows operating system versions with the capability.
• A device driver model for power management that supports per-device
power management. To meet these needs, Microsoft also announced the
Win32 Driver Model, a unified driver model for Windows 95 and Windows
NT.
• Common architecture and interfaces for power management for
both Windows 95 and Windows NT. Moreover, Advanced Configuration and
Power Interface (ACPI) compliant systems enable identical hardware and
drivers to be used for both Windows 95 and Windows NT.
• Enhanced device and bus hardware power management capabilities.
The OnNow initiative provides a framework for establishing power management
interfaces and power-state definitions in bus and device hardware.
• An application architecture that integrates applications into
power management by improving the flow of control and information through
the application interface. For instance, a presentation application
can request the display to remain on even though the machine is otherwise
idle.
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