Tanenbaum takes a structured approach to explaining how networks work from the inside out.He starts with an explanation of the physical layer of networking, computer hardware and transmission systems; then works his way up to network applications.Tanenbaums in-depth application coverage includes email; the domain name system; the World Wide Web (both client- and server-side); and multimedia (including voice over IP, Internet radio video on demand, video conferencing, and streaming media. Each chapter follows a consistent approach: Tanenbaum presents key principles, then illustrates them utilizing real-world example networks that run through the entire book--the Internet, and wireless networks, including Wireless LANs, broadband wireless and Bluetooth.The Fifth Edition includes a chapter devoted exclusively to network security.The textbook is supplemented by a Solutions Manual, as well as a Website containing PowerPoint slides, art in various forms, and other tools for instruction, including a protocol simulator whereby students can develop and test their own network protocols.