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Registry Topology

The topology of the Name Registry can be summarized as follows:

• An unnamed root exists at the top of the Registry tree.
• A Devices name entry exists under the root. It represents the I/O universe for the computer.
• The device tree exists as a descendant (child) of the Devices name entry, with a new name device-tree, which is machine independent. This descendant represents the Power Macintosh I/O hardware.
• The Gestalt entry is another child of the root, making it a peer to Devices. This entry is not guaranteed to be available in future Macintosh computer implementations.

These relationships are diagrammed in Figure 10-2.

Figure 10-2 Typical Name Registry structure