Device Management

The Windows 2000 Professional device tree is a record of the devices currently loaded, based on the configuration information in the registry. The device tree is created in random access memory (RAM) each time the system is started or whenever a dynamic change occurs to the system configuration.

Each branch in the tree defines a device node with the following requirements for system configuration:

  • Unique identification code, or device ID.

  • List of required resources, such as interrupt request (IRQ) and memory range, including resource type.

  • List of allocated resources.

  • Indication that the device node is a bus, if applicable (each bus device has additional device nodes under it in the tree).