CHAPTER SUMMARY

In this chapter, you learned how a computer converts digital information to a readable format that humans can understand. This chapter also addressed important input devices and the system resources they utilize to communicate with the computer’s main components. To be a proficient computer technician, it is essential that you are aware of how computer resources work together. So that you can properly install, upgrade, diagnose, and troubleshoot a system, it is imperative that you understand IRQs, DMA channels, and base I/O memory addresses. It is a safe bet that the A+ Core Hardware exam is going to focus on these areas.