The Internet Book, Fifth Edition explains how computers communicate, what the Internet is, how the Internet works, and what services the Internet offers. It is designed for readers who do not have a strong technical background — early chapters clearly explain the terminology and concepts needed to understand all the services. It helps the reader to understand the technology behind the Internet, appreciate how the Internet can be used, and discover why people find it so exciting. In addition, it explains the origins of the Internet and shows the reader how rapidly it has grown. It also provides information on how to avoid scams and exaggerated marketing claims.

The first section of the book introduces communication system concepts and terminology. The second section reviews the history of the Internet and its incredible growth. It documents the rate at which the digital revolution occurred, and provides background that will help readers appreciate the significance of the underlying design. The third section describes basic Internet technology and capabilities. It examines how Internet hardware is organized and how software provides communication. This section provides the foundation for later chapters, and will help readers ask good questions and make better decisions when salespeople offer Internet products and services. The final section describes application services currently available on the Internet. For each service, the book explains both what the service offers and how the service works.

About the Author

Dr. Douglas Comer is a Distinguished Professor at Purdue University in the departments of Computer Science and Electrical and Computer Engineering. He has created and enjoys teaching undergraduate and graduate courses on computer networks and Internets, operating systems, computer architecture, and computer software. One of the researchers who contributed to the Internet as it was being formed in the late 1970s and 1980s, he has served as a member of the Internet Architecture Board, the group responsible for guiding the Internet’s development. Prof. Comer is an internationally recognized expert on computer networking, the TCP/IP protocols, and the Internet, who presents lectures to a wide range of audiences. In addition to research articles, he has written a series of textbooks that describe the technical details of the Internet. Prof. Comer’s books have been translated into many languages, and are used in industry as well as computer science, engineering, and business departments around the world. Prof. Comer joined the Internet project in the late 1970s, and has had a high-speed Internet connection to his home since 1981. He wrote this book as a response to everyone who has asked him for an explanation of the Internet that is both technically correct and easily understood by anyone. An Internet enthusiast, Comer displays INTRNET on the license plate of his car.

chapter 1|8 pages

The Internet is Everywhere

part 1|2 pages

Before The Internet A Gentle Introduction To Communication Systems Concepts And Terminology

chapter 2|8 pages

Telephones Everywhere

chapter 3|14 pages

The World was Once Analog

chapter 4|8 pages

The Past and Present Digital Network

chapter 5|10 pages

Basic Communication

chapter 6|10 pages

Local Area Networks

part 2|2 pages

A Brief History Of The Internet ...how and why the Internet grew from its humble beginnings to become the largest network in the world

chapter 7|12 pages

Internet: Motivation and Beginnings

chapter 8|12 pages

The Incredible Growth

part 3|2 pages

Inside The Internet An Explanation Of The Underlying Technology And Basic Capabilities Of The Infrastructure

chapter 9|10 pages

Packet Switching

chapter 10|14 pages

Internet: A Network of Networks

chapter 11|10 pages

Internet Access Using Broadband and Wireless

chapter 12|14 pages

Internet Performance

chapter 13|10 pages

IP: Software to Create A Virtual Network

chapter 14|8 pages

TCP: Software for Reliable Communication

chapter 15|8 pages

Clients, Servers, and Internet Services

chapter 16|10 pages

Names for Computers

chapter 17|8 pages

Sharing An Internet Connection (NAT)

chapter 18|6 pages

Why the Internet Works Well

part 4|2 pages

Internet Services Examples of services along with an explanation of how they work

chapter 19|8 pages

Electronic Mail

chapter 20|10 pages

The World Wide Web: Browsers and Basics

chapter 21|10 pages

The World Wide Web: HTML and Web Pages

chapter 22|14 pages

The World Wide Web: Web Pages that Change

chapter 23|6 pages

Social Networking and Personal Publishing

chapter 24|10 pages

The Internet of Things (IoT)

chapter 25|10 pages

Internet Search (Search Engines)

chapter 26|12 pages

Voice and Video Communication (VoIP)

chapter 27|10 pages

File Transfer and Data Sharing

chapter 28|8 pages

Remote Desktop

chapter 29|16 pages

Cloud Services And Cloud Computing

part 5|2 pages

Other Aspects Of Internet Technology Internet Security And Economics

chapter 30|16 pages

Network Security (Encryption And Firewalls)

chapter 31|8 pages

Security Scams: Fooling Users

chapter 32|12 pages

Secure Access From A Distance (VPNs)

chapter 33|12 pages

Internet Economics And Electronic Commerce

chapter 34|6 pages

A Global Digital Library