The document discusses PC repair fundamentals including tools, preventative maintenance, working inside computers, the boot process, and troubleshooting failed boots. Some key points covered are essential tools for PC support technicians, developing a preventative maintenance plan, safety procedures for working inside computers, the four phases of the boot process controlled by BIOS, and a four-step process for troubleshooting PC problems.

1. A+ Guide to Managing and Maintaining your PC, 6e Chapter 3 PC Repair Fundamentals

6. Figure 3-1 PC support technician tools

8. Figure 3-2 Windows Setup CD and Windows Recovery CDs for a notebook computer

10. Figure 3-3 Loop-back plugs used to test serial and parallel ports

12. Figure 3-5 Each chemical you use should have available a material safety data sheet

14. Figure 3-6 Post Code Master diagnostic card by MSD, Inc.

17. Figure 3-9 Configure antivirus software to scan e-mail and instant message attachments and to download updates automatically

22. Table 3-2 Computer parts and how to dispose of them

25. Figure 3-13 A ground bracelet, which protects computer components from ESD, can clip to the side of the computer case and eliminate ESD between you and the case

27. Figure 3-19 Removing the cover

29. Figure 3-33 Remove the motherboard from the case

35. Figure 3-40 Boot Step 1: The ROM BIOS startup program surveys hardware resources and needs and assigns system resources to satisfy those needs

37. Figure 3-42 Numbered steps show how BIOS searches for and begins to load an operating system (in this example, Windows NT/2000/XP is the OS)

40. Figure 3-44 General approach to troubleshooting

43. Figure 3-45 Use this flowchart when first facing a computer problem

45. Table 3-4 Beep codes and their meanings