This book contains an easy to understand introduction to computer networking. You'll get an overview of network servers, network devices, physical networking media and media access protocols. You'll learn about computer number systems, addressing, routing, and subnetting. You'll learn about network security, network troubleshooting, wireless networking and cloud computing. If your goal is to become a computer technology professional, this book introduces you to the advantages and disadvantages of the network technician career field. If your goal is to achieve certification, this book tells you how to study for and how to pass the CompTIA Network+ Exam. You'll learn how, and why, you need to setup a computer lab.This book, contains 70 charts, diagrams, pictures, and illustrations. This is the best place to get started before you delve into one of those 12-pound comprehensive volumes.