Mac OS X Unleashed

By John Ray and William C. Ray

• Table of Contents
  • Copyright
  • About the Author
  • Acknowledgments
  • Tell Us What You Think!
  • Introduction
  • Part I: Introduction to Mac OS X
  • Chapter 1. Mac OS X Component Architecture
  • Chapter 2. Installing Mac OS X
  • Chapter 3. Mac OS X Basics
  • Chapter 4. The Finder: Working with Files and Applications
  • Chapter 5. Running Classic Mac OS Applications
    • The Classic Environment
    • Launching Classic
    • The Boot Process
    • Running Classic Applications
    • Classic Options
    • Direct Booting Mac OS 9.x
    • Summary
  • Part II: Inside Mac OS X
  • Chapter 6. Native Utilities and Applications
  • Chapter 7. Internet Communications
  • Chapter 8. Installing Third-Party Applications
  • Part III: User-Level OS X Configuration
  • Chapter 9. Network Setup
  • Chapter 10. Printer and Font Management
  • Chapter 11. Additional System Components
  • Part IV: Introduction to BSD Applications
  • Chapter 12. Introducing the BSD Subsystem
  • Chapter 13. Common Unix Shell Commands: File Operations
  • Part V: Advanced Command-Line Concepts
  • Chapter 14. Advanced Shell Concepts and Commands
  • Chapter 15. Command-Line Applications and Application Suites
  • Chapter 16. Command-Line Software Installation
  • Chapter 17. Troubleshooting Software Installs, and Compiling and Debugging Manually
  • Chapter 18. Advanced Unix Shell Use: Configuration and Programming (Shell Scripting)
  • Part VI: Server/Network Administration
  • Chapter 19. X Window System Applications
  • Chapter 20. Command-Line Configuration and Administration
  • Chapter 21. AppleScript
  • Chapter 22. Perl Scripting and SQL Connectivity
  • Chapter 23. File and Resource Sharing with NetInfo
  • Chapter 24. User Management and Machine Clustering
  • Chapter 25. FTP Serving
  • Chapter 26. Remote Access and Administration
  • Chapter 27. Web Serving
  • Part VII: Server Health
  • Chapter 28. Web Programming
  • Chapter 29. Creating a Mail Server
  • Chapter 30. Accessing and Serving a Windows Network
  • Chapter 31. Server Security and Advanced Network Configuration
  • Chapter 32. System Maintenance
  • Appendix A. Command-Line Reference
  • Appendix B. Administration Reference

The Classic Environment

As defined in Chapter 1, "Mac OS X Component Architecture," the Classic environment is a complete implementation of Mac OS 9.x on top of Mac OS X. To Mac OS X, Classic is nothing but another application; to a user, however, Classic is a gateway to his older software programs.

When using the Classic environment, the 9.x operating system must access all hardware through the Mac OS X kernel. This means software that accesses hardware directly will fail. Users of 3Dfx video cards, hardware DVD playback, video capture cards, and even CD writers will find that their hardware no longer functions correctly.

On the other hand, Classic brings the benefit of Mac OS X's virtual memory underpinnings to legacy applications. Each Mac OS 9.x application can be configured for a much larger memory partition than was possible previously. To the Classic environment, the virtual memory appears to be real memory. Programs have much more breathing room in which to function.

Working with the Classic environment is a somewhat unusual experience. Depending on the application running, there can be graphic anomalies and confusing file system navigation. This chapter will show what you'll see and what to do when things don't seem to work right.

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