This developer note describes a new Macintosh computer. The computer is referred to as the Power Macintosh G3 throughout the developer note. This note describes the features of the Power Macintosh G3 computer, the logic board architecture and expansion capabilities, and issues affecting compatibility. This developer note is intended to help hardware and software developers design products that are compatible with the Macintosh products described here. 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 Macintosh G3 computer.
Architecture describes the internal organization of the computer.
It includes a functional block diagram and descriptions of the main components of the logic board. It also describes the built-in support for external video monitors that can be used with the computer. Expansion Features describes the expansion slots on the logic board and provides descriptions of the expansion modules. System Software describes the system software that comes with the computer, with emphasis on the new Open Firmware features. Conventions and Abbreviations describes the typographical conventions and lists the abbreviations used in this note.