The information is arranged in five chapters, an appendix, and an index:
Introduction gives a summary of the features of the Power Mac G4 computer, describes the physical appearance of the enclosure, and lists the available configurations and options. This chapter also includes a section describing compatibility issues that developers need to be aware of to take advantage of the features available with the Power Mac G4 computer.
Architecture describes the internal organization of the Power Mac G4 computer. It includes a functional block diagram and descriptions of the main components on the logic board.
Input and Output Devices describes the built-in input/output (I/O) devices and the external I/O ports.
Expansion describes the expansion slots on the logic board and provides descriptions of the expansion modules.
Software describes the system software that comes with the computer, with emphasis on the Open Firmware features and the software support for the new hardware features.
Conventions and Abbreviations describes the typographical conventions and lists the abbreviations used in this note.