title: Mac OS 9: The Complete Reference (Osborne Complete Reference Series)
author:  Gene Steinberg 
description: At nearly 900 pages, it's safe to say that after reading <i>Mac OS 9: The Complete Reference</i>, you'll learn all you need to know about Apple's operating system. Gene Steinberg, author of several Mac-related books, has provided an all-encompassing guide to OS 9, though it isn't for the faint of heart.
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  Table of Contents
  
  
  [Part I: For Power Users](9781118236055p01.xhtml)
  
  
  [Chapter 1: Darwinism: The Evolution of OS X](9781118236055c01.xhtml)
  
  
  [The Pre-Darwin Era: Mac OS Classic](9781118236055c01.xhtml#c01_level1_1)
  
  
  [The Prodigal Son: NeXTSTEP](9781118236055c01.xhtml#c01_level1_2)
  
  
  [Enter: OS X](9781118236055c01.xhtml#c01_level1_3)
  
  
  [OS X Versions, to Date](9781118236055c01.xhtml#c01_level1_4)
  
  
  [iOS — OS X Goes Mobile](9781118236055c01.xhtml#c01_level1_5)
  
  
  [The Future of OS X](9781118236055c01.xhtml#c01_level1_6)
  
  
  [Summary](9781118236055c01.xhtml#c01_level1_7)
  
  
  [References](9781118236055c01.xhtml#c01_level1_8)
  
  
  [Chapter 2: E Pluribus Unum: Architecture of OS X and
  iOS](9781118236055c02.xhtml)
  
  
  [OS X Architectural Overview](9781118236055c02.xhtml#c02_level1_1)
  
  
  [The User Experience Layer](9781118236055c02.xhtml#c02_level1_2)
  
  
  [Darwin — The UNIX Core](9781118236055c02.xhtml#c02_level1_3)
  
  
  [UNIX System Directories](9781118236055c02.xhtml#c02_level1_4)
  
  
  [I