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Important: The information in this document is obsolete and should not be used for new development.
Links to downloads and other resources may no longer be valid.
This developer note is a technical description of the PowerBook G4 17-inch computer. The note provides
information about the computer’s internal design, input-output features, and expansion capabilities.
This developer note is intended to helphardware and softwaredevelopers design products that are compatible
with the Macintosh products described here. If you are not already familiar with Macintosh computers or if
you would like additionaltechnical information, you may wish toread thesupplementary reference documents
described in Appendix A (page 59).
Organization of This Document
The information in this note is arranged in four chapters and two appendixes.
● Chapter 1, “Introduction”, (page 11) introduces the PowerBook G4 17-inch computer and describes its
features.
● Chapter 2, “Architecture”, (page 17) describes the internal logic of the computer, including the main ICs
that appear in the block diagram.
● Chapter 3, “Devices and Ports”, (page 25) describes the standard I/O ports and the built-in I/O devices.
● Chapter 4, “Expansion Features”, (page 53) describes the expansion features of interest to developers.
It includes development guides for expansion-bay devices, the RAM expansion modules, and the PC
Card slot.
● Appendix A (page 59) contains links to supplemental reference documents.
● Appendix B (page 65) is a list of the abbreviations used in this developer note.
Organization of This Document 9
Legacy Document | 2003-03-01 | © 2003 Apple Computer, Inc. All Rights Reserved.
INTRODUCTION
Introduction to PowerBook G4 17-inch