4.1.1. Getting Started
4.1.2. Switching from Other Operating Systems
4.1.3. Distributions
4.1.4. Installation
4.1.5. Kernel
4.1.6. Boot Loaders and Booting the OS
4.1.7. Parallel Processing
4.1.8. Partitions and Filesystems
4.1.9. RAID
4.1.10. Printing
4.1.11. Shell
4.1.12. Using Linux

4.2.1. Configuration / Installation
4.2.2. Benchmarking
4.2.3. Clustering
4.2.4. Backup
4.2.5. Recovery
4.2.6. Security

4.3.1. General
4.3.2. Platforms
4.3.3. Video Cards
4.3.4. CPUs / Architectures
4.3.5. CD-ROM / DVD-ROM Drives
4.3.6. Optical Disks
4.3.7. Keyboard and Console
4.3.8. Digital Cameras
4.3.9. Graphic Tablets
4.3.10. Diskettes
4.3.11. Hard Disks
4.3.12. Jaz and ZIP Drives
4.3.13. Mice
4.3.14. Modems
4.3.15. Printers / Scanners
4.3.16. Routers
4.3.17. SCSI
4.3.18. Serial Ports
4.3.19. Sound Cards
4.3.20. Tape Drives
4.3.21. Touchscreens
4.3.22. UPS
4.3.23. Wireless
4.3.24. Miscellaneous

4.4.1. General
4.4.2. Protocols
4.4.3. Dial-up
4.4.4. DNS
4.4.5. Virtual Private Networks
4.4.6. Bridging
4.4.7. Routing
4.4.8. Security
4.4.9. Telephony / Satellite
4.4.10. Miscellaneous

4.5.1. Installing Applications
4.5.2. User Applications
4.5.3. Server Applications

4.5.3.1. DBMS / Databases
4.5.3.2. Mail
4.5.3.3. Usenet Network News
4.5.3.4. HTTP / FTP
4.5.3.5. Miscellaneous

4.5.4.1. X Window System
4.5.4.2. Window Managers
4.5.4.3. Fonts

4.5.5.1. Audio
4.5.5.2. Video

4.6.1. General
4.6.2. Compilers
4.6.3. Languages
4.6.4. Libraries
4.6.5. Interfaces / API / Protocols
4.6.6. Security
4.6.7. Tools
4.6.8. Version Control
4.6.9. DBMS / Databases
4.6.10. Miscellaneous

4.7.1. Language Support
4.7.2. Using Specific Languages

4.8.1. Authoring / Documentation
4.8.2. Linux Advocacy / Getting (and Staying) Involved
4.8.3. Hobbies and Special Interests