Enhanced A+ Guide to Managing and Maintaining Your PC Book

1. How Computers Work 2. How Software & Hardware Work Together 3. The System Board 4. Understanding and Managing Memory 5. Floppy Drives 6. Introduction to Hard Drives 7. Hard Drive Installation and Support 8. Troubleshooting Fundamentals 9. Supporting I/O Devices 10. Multimedia Technology 11. Electricity and Power Supplies 12. Supporting Windows 9x 13. Understanding and Supporting NT Workstation 14. Windows 2000 15. Purchasing a PC or Building Your Own 16. Communication Over Phone Lines 17. Networking Fundamentals and the Internet 18. Printers and Notebook Computers 19. Viruses, Disaster Recovery, and Maintenance Plan 20. Professional PC Technicians Appendix A Error Messages & their Meanings Appendix B Hard Drive Types Appendix C ASCII Character Set and ANSI.SYS Appendix D Hex Numbering System and Memory Addressing Appendix E Troubleshooting Guidelines Appendix F Behind the Scenes with DEBUG Appendix G Interrupt Vectors