Communications and Networking: An Introduction provides a clear and easy to follow treatment of the subject, written specifically for undergraduates who have no previous experience in the field. The author takes a step by step approach, with examples and exercises designed to give the reader increased confidence in using and understanding communications systems. Topics covered include communications technologies, networking models and standards, local area and wide area networks, network protocols, TCP/IP-based networks and network management. Key features: • Includes plenty of material on wireless communications, both fixed and mobile • Offers coverage of network security •Features many explanatory diagrams • Incorporates a comprehensive glossary Written by John Cowley, a lecturer with many years' experience teaching undergraduate programmes, the text takes the reader through the essentials of networking and provides a comprehensive, reliable and thorough treatment of the subject.