How a Network Works is an illustrated guide to the world of networks. This Book is designed for students who want to know the basics of how networks work. How a Network Works explores the underlying concepts of how networks function. Combines excellent graphics that brings the inside of a network to life. Introduces the three main network types, star networks, bus networks and ring networks. Describes the differences between local area networks (LAN) and wide area networks (WAN). Covers network security with user names and passwords. Access rights are described. The network firewall is covered. Describes data packets and ports. The TCP/IP protocols are detailed. Internet networks are covered. Client Server is described. Covers name server and peer to peer networks. This fully illustrated guide to the world of networks is Ideal for Computing Key Stage 3 and computer science K12.