Computer Networks and Internets (6th Edition) offers a comprehensive introduction to the concepts, principles, and technologies that enable today’s Internet to support a wide range of applications, from web browsing to telephony and multimedia. Leading networking authority Douglas E. Comer presents this self-contained tour with clear explanations and examples, making it suitable for introductory-to-intermediate courses in computer networking, the Internet, or internet applications without requiring any background in networking, operating systems, or advanced mathematics.

The book begins by illuminating the applications and facilities offered by today’s Internet. It then systematically introduces the underlying network technologies and protocols that make these applications possible. Comer covers important contemporary issues faced by network implementers and managers, including quality of service, Internet telephony, multimedia, network security, and network management.

Comer has carefully designed this book to support both top-down and bottom-up teaching approaches, ensuring that students can follow along without needing a background in operating systems or advanced math. The author relies on figures, drawings, examples, and analogies rather than mathematical proofs to explain complex concepts.

This program aims to provide a better teaching and learning experience for both instructors and students, making it an essential resource for anyone interested in understanding the intricacies of modern computer networks and internet technologies.