Computers systems power our world today. But how are those systems set up and connected to each other? Readers find out in this guide to setting up computer systems and connecting multiple computers in a network. The informative text explains how small networks, such as those within a home, work. It also describes how large networks, such as those used by businesses and schools, operate, sometimes across long distances. Young readers with an interest in computers and digital technology are sure to enjoy this age-appropriate look at a valuable STEM skill.