Computer communications and networks are essential components of any computer science degree, reflecting the technology's increasing presence in modern life. This clear and accessible textbook offers a thorough introduction to networking and communications technologies, featuring numerous diagrams, examples, and exercises to enhance understanding and confidence in using these systems. The thoroughly revised edition maintains the popular step-by-step approach of the original, making it suitable for those with limited prior knowledge. Key features include chapter-ending summaries and review questions, an Appendix on TCP/IP packet formats, and an expanded Glossary. Additional resources are available on the associated Springer website, such as teaching slides, solutions to end-of-chapter questions, and supplementary exercises. The text places greater emphasis on mobile computing and network security, with extended coverage of IPv6. It discusses networking models and standards, local and wide area networks, network protocols, TCP/IP-based networks, network management, and wireless communications. New topics include grid and cloud computing, microblogging, mobile ad hoc networks, near-field communication, Power over Ethernet, and the Ground Positioning System. Designed for undergraduate computing students with no prior experience, this comprehensive textbook draws on the author's extensive teaching background.

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