How the Internet Works

Preston Gralla  
QUE Publishing
Total pages
November 2006

Product detail

Title no longer available

Table of Contents


Part 1: Understanding the Internet’s Underlying Architecture

Chapter 1 What Is the Internet?

Chapter 2 How Computer Networks Send Data
Across the Internet

Chapter 3 How TCP/IP Works

Chapter 4 Understanding the Internet’s Software Structure

Chapter 5 How Internet Addresses and Domains Work

Chapter 6 How Routers Work

Part 2: Connecting to the Internet

Chapter 7 How Computers Connect to the Internet

Chapter 8
How Internet/Television Connections Work

Chapter 9
How Wireless Connections and WiFI Work

Chapter 10
How Home Networks Work

Part 3: Communicating on the Internet

Chapter 11 How Email Works

Chapter 12 How Email Spam Works

Chapter 13 How Newsgroups Work

Chapter 14 How Internet Chat and Instant Messaging Work

Chapter 15 How Skype and VoIP Work

Chapter 16 How Blogging and RSS Work

Part 4: How the World Wide Web Works

Chapter 17 How Web Pages Work

Chapter 18 How Web Browsers Work

Chapter 19 How Markup Languages Work

Chapter 20 How Hypertext Works

Chapter 21 How URLs Work

Chapter 22 How Image Maps and Interactive Forms Work

Chapter 23 How Web Host Servers Work

Chapter 24 How Websites Work with Databases

Chapter 25 How .NET and Web Services Work

Chapter 26 How Grid Computing Works

Part 5: Using the World Wide Web

Chapter 27 How Internet Searching Works

Chapter 28 How Google Works

Chapter 29 How Map Sites Work

Chapter 30 How Wikis and Wikipedia Work

Part 6: Using Common Internet Tools

Chapter 31 How Telnet Works

Chapter 32 How FTP Works

Chapter 33 How Agents Work

Chapter 34 How Java, ActiveX, and JavaScript Work

Chapter 35 How CGI Scripting Works

Part 7: Enjoying Entertainment and Multimedia on the Internet

Chapter 36 How Music and Audio Work on the Internet

Chapter 37 How iPods, iTunes, and Podcasting Work

Chapter 38 How Music Sharing and File Sharing Work

Chapter 39 How Multicast IP and the MBone Work

Chapter 40 How Virtual Reality Is Created by VRML

Chapter 41 How Animation on the Web Works

Part 8: Shopping and Doing Business on the Internet

Chapter 42 How Intranets Work

Chapter 43 Shopping on the Internet

Part 9: Protecting Yourself on the Internet

Chapter 44 How Firewalls Wor

Chapter 45 How Hackers Can Cripple the Internet and Attack Your PC

Chapter 46 The Dangers of Wireless Networking

Chapter 47 How Viruses Work

Chapter 48 How Internet Sites Can Invade Your Privacy

Chapter 49 The Dangers of Spyware and Phishing

Chapter 50 Cryptography, Privacy, and Digital Certificates

Chapter 51 How Government and Workplace Surveillance Work

Chapter 52 Parental Controls on the Internet


0789736268, TOC, 10/10/06

Back Cover

Simple, clear explanations walk you through every technology

Detailed explanations walk you through the technology.


The Internet has changed the world... and, with everything from blogs to podcasts, Internet phones to video, it’s still changing the world. Now, it’s easy to understand how it all works! This book’s big, brilliant, full-color illustrations and clear explanations make it all incredibly simple!



This new edition has been completely updated for today’s hottest Internet technologies, Web connections, hardware, communications and entertainment services, and much more!


•    See how the Internet can deliver any kind of information, anywhere: web pages, email, music, video, phone calls, and more!

•    Understand the most exciting new Internet technologies, from blogs and podcasting to wikis and BitTorrent

•    Discover how your connection to the Internet works... wireless, cable modem, DSL, even cellphones

•    Go behind the scenes with today’s most sophisticated websites, applications, and services

•    Protect yourself from the latest Internet dangers, including phishing, web surveillance, and wireless hacking 


Preston Gralla is the award-winning author of more than 30 books, including How the Internet Works, Complete Idiot’s Guide to Internet Privacy and Security, Complete Idiot’s Guide to Protecting Your Child Online, and How Wireless Works. He has written

frequently about security issues, computer technology, the Internet, and has been a columnist for many magazines, websites

and newspapers.





Preston Gralla

is the award-winning author of 20 books, including

How Wireless Works

, How To Expand and Upgrade PCs, and The

Complete Idiot’s Guide to Protecting Yourself Online

. He is an executive

editor and columnist for CNet and ZDNet; is a technology columnist

for the Dallas Morning News; and has written about technology

for many magazines and newspapers, including USA Today, PC

Magazine, the Los Angeles Times, Boston Magazine, PC/Computing,


, and FamilyPC among many others. Gralla has won

several writing and editing awards, including one from the

Computer Press Association for the best feature article in a computer


As a well-known expert on computers and the Internet, he has appeared

frequently on numerous TV and radio shows and networks,

including the CBS Early Show, CNN, National Public Radio’s All

Things Considered, MSNBC, CNBC, TechTV, and CNet Radio.

He was the founding managing editor of the well-known newspaper

PC Week

and a founding editor of PC/Computing. Under his editorship,


was a finalist for General Excellence from the

National Magazine Awards.

Gralla lives in Cambridge, Massachusetts, with his wife Lydia, children

Gabriel and Mia, and a rabbit named Polichinelle. He also

writes the free Gralla’s Internet Insider email newsletter. To subscribe

to it for free, send an email to with the

words SUBSCRIBE NETINSIDER on the subject line.