xvii Unit 5 Electronic Communication and Data Systems Chapter 24 Radio Communications . . . . . . . . . . . . . . . . . .414 24.1 Simple Radio Receiver. . . . . . . . . . . . . . . . . . . . . . . . .415 24.2 Radio Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . .420 24.3 Modulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .423 24.4 AM Receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .428 24.5 The Superheterodyne Receiver. . . . . . . . . . . . . . . . . . .430 24.6 FM Receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .439 24.7 Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .443 24.8 Digital Radio Communications. . . . . . . . . . . . . . . . . . .445 Chapter 25 Electronic Display Systems. . . . . . . . . . . . . . .452 25.1 Image Color Physics and Theory. . . . . . . . . . . . . . . . . .453 25.2 Display Types and Specifi cations . . . . . . . . . . . . . . . . .455 25.3 Digital Television and Video Distribution . . . . . . . . . . . .461 25.4 Audio and Video Connections. . . . . . . . . . . . . . . . . . . .464 25.5 Troubleshooting Display Systems . . . . . . . . . . . . . . . . .467 Chapter 26 Fiber Optics and Lasers . . . . . . . . . . . . . . . . .473 26.1 Fiber Optics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .474 26.2 Lasers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .485 Chapter 27 Introduction to the Personal Computer (PC) . . .492 27.1 PC Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .493 27.2 Computer Design, Components, and Technologies . . . . . .495 27.3 Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .506 27.4 Computer Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . .509 27.5 Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .511 Chapter 28 Networking Fundamentals for Electronics . . .515 28.1 Introduction to the Network. . . . . . . . . . . . . . . . . . . . .516 28.2 Electronic Device Network Identifi cation. . . . . . . . . . . .522 28.3 How Networks Communicate . . . . . . . . . . . . . . . . . . . .525 28.4 Introduction to Major Network Components. . . . . . . . . .527 Chapter 29 Wireless Technology . . . . . . . . . . . . . . . . . . . .534 29.1 Introduction to Wireless Technology . . . . . . . . . . . . . . .535 29.2 Wireless Network Structure and Equipment. . . . . . . . . .538 29.3 Wireless Security . . . . . . . . . . . . . . . . . . . . . . . . . . . .543 29.4 Troubleshooting Wireless Networks. . . . . . . . . . . . . . . .546 29.5 Digital Cell Technology . . . . . . . . . . . . . . . . . . . . . . . .549 Chapter 30 Microcontrollers . . . . . . . . . . . . . . . . . . . . . . .554 30.1 Overview of the Microcontroller. . . . . . . . . . . . . . . . . . .555 30.2 Microcontroller Components. . . . . . . . . . . . . . . . . . . . .558 30.3 Programming Languages and Terminology. . . . . . . . . . .561 30.4 The Microcontroller Module. . . . . . . . . . . . . . . . . . . . .564 30.5 Troubleshooting and Repair Procedures . . . . . . . . . . . . .568 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .575 Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .584 Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .599