Facts101 is your complete guide to Principles of Computer Networks and Communications. In this book, you will learn topics such as Signal fundamentals, Encoding: representing information, Error Control, and Communications connections plus much more. With key features such as key terms, people and places, Facts101 gives you all the information you need to prepare for your next exam. Our practice tests are specific to the textbook and we have designed tools to make the most of your limited study time.