xv Copyright Goodheart-Willcox Co., Inc. Maximize the Impact Maximize the Impact G-W Learning Companion Website Technology is an important part of your world. So, it should be part of your everyday learning experiences. G-W Learning for Principles of Information Technology is a study reference that contains activity fi les, vocabulary exercises, interactive quizzes, and more. Visit www.g-wlearning.com. G-W Learning provides you with opportunities for hands-on interactivity so you can study on the go. Look for the activity icon in the text next to the following activities. • Chapter pretests and posttests allow you to assess what you know before you begin the chapter as well as evaluate what you have learned at the completion of your study. • E-fl ash cards and matching activities for every key term in each chapter will reinforce vocabulary learned in the text and enable you to study on the go. • Certifi cation practice tests help you prepare for IC3 Digital Literacy Certifi cation by answering the types of questions found on the certifi cation exams. Goodheart-Willcox QR Codes This Goodheart-Willcox product contains QR codes*, or quick response codes. These codes can be scanned with a smartphone bar code reader to access the chapter pretests and posttests. For more information on using QR codes and a recommended QR code reader, visit G-W Learning. www.g-wlearning.com *An Internet connection is required to access the QR code destinations. Data-transfer rates may apply. Check with your Internet service provider for information on your data-transfer rates.