xiv Following the suggested guidelines will help you make the most of your introduction to computer servicing. ■ Read the Learning Outcomes listed in the chapter opener. Each outcome is tied directly to a heading within the content. In addition, these objectives are repeated in the chapter summary and applied in end-of-chapter review questions. Th e connection of Learning Outcomes throughout the content helps you focus and apply important information as you read each chapter. ■ Read the list of CompTIA A+ Objectives in the chapter-opening material. Th ese objectives are also noted in the margin with an icon where the material is covered. Use the list of objectives in the chapter opener as a checklist to take inventory of CompTIA standards you understand, as well as information you need to review. Th e icons in the margins are there to direct you to the coverage of each objective for review. ■ Pay attention to the illustrations. Each illustration is strategically created to highlight important information. By studying these, you will extend your learning and improve retention and application of the content. ■ Read all A+ Note, Tech Tip, and Caution features as you progress through the material. Th is information helps supplement your learning by highlighting study tips, providing useful industry information, and helping you ensure personal and machine safety when working with networking devices. ■ Review the summary at the end of each chapter. Th is will help you retain important information from the chapter. ■ Answer the review questions and sample A+ questions in the end-of-chapter material. Th ese questions provide exposure to the types of questions likely to be on the CompTIA A+ Certifi cation Exam. By practicing these questions, you increase your chances of successfully earning CompTIA A+ certifi cation. Th e Computer Service and Repair text and accompany- ing resources will help you prepare for the CompTIA A+ Certifi cation Exam. You will learn the basics of PC main- tenance, troubleshooting, repair, and component re- placement. Additionally, you will learn about networking, have access to an A+ practice exam, and understand qualities employers seek in job candidates while main- taining realistic expectations about employment. Th ese are concepts that you will need to understand not only for the certifi cation exam, but also for your career as an information technology professional. Each chapter in Computer Service and Repair begins with a set of Learning Outcomes. Th ese are the goals you should focus on accomplishing by the time you complete each chapter. For each outcome, there is a corresponding top-level heading, review question, and summary bullet point to help ensure you understand the topics cov- ered in the chapter. Th ere is also a list of CompTIA A+ Certifi cation Exam Objectives in the beginning of each chapter that outline the CompTIA content that will be discussed. In addition to Learning Outcomes, the chapter- opening material also lists a set of key terms discussed throughout the material. Th ese terms are in boldface when they appear in the content. Th is makes them easily distinguishable from the rest of the text. Th ere are also important words or phrases printed in italic text to which you should pay special attention and consider- ation. Studying these terms will help you understand the material and better prepare you for your certifi cation and employment. Each chapter concludes with a summary of impor- tant points to remember, organized by level-one head- ings. Th is summary will help you review important topics from each section of the chapter. How to Use This Text