To get to the device manager in Windows, right click on the My computer icon, choose properties, then click on the device manager tab. From there you can select a variety of management options.

The device manager is found in both Windows (95 and higher) and Macintosh PC platforms. Windows2000 contains an improved device manager that detects plug-and-play hardware and displays a large list of supported hardware.

Device Manager Internals
Here's what one hacker learned about the Windows Device Manager by hacking the registry and digging in INF files.