This chapter describes the architecture of the PowerBook G3 Series 1999 computer with emphasis on the aspects that are new or different from those of earlier PowerBook computers.
The architecture of the PowerBook G3 Series 1999 computer is designed around two main circuit boards: the processor module and the main logic board. Figure 2-1 is a block diagram showing the major components and the relationship of the processor module and the main logic board. (The modem module shown in the diagram is described with the main logic board.)