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The Internet does many wondrous things, but an alarming number of them remain "black boxes" whose interior workings are a mystery. In
How the Internet Works, Preston Gralla shows how information gets from here to there on the world's biggest computer network. With assistance from illustrators Sarah Ishidi, Mina Reimer, and Stephen Adams, Gralla presents a series of full-color spreads, each of which picks apart some aspect of Internet technology. You'll find explanations of Uniform Resource Locators (URLs), Web browsers, electronic mail, Web search engines, multimedia, and more. There's a spread that shows how bulk e-mailers (known as spammers) extract addresses from newsgroups and send advertisements to them. There's also an excellent graphical depiction of how the infamous Melissa trojan horse wreaked havoc among Microsoft Outlook users in early 1999.
Some of the explanations are weaker than others. While Gralla gives a lot of details about how Internet telephony works, his explanation of PointCast consists of, to paraphrase, "You install the special client software, which communicates with the special server software and presents news to you." It's more of a definition than an explanation. The book is split about evenly between simple definition entries and detailed, commendable how-it-works entries. There's no glossary per se, but the index is good. --David Wall
Topics covered: Internet architecture, addressing, domain names, routers, connectivity, e-mail, newsgroups, Web browsers, push technologies, and Internet safety and security.
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Book Description
Have you ever wanted to know how data travels from computer to computer, around the world? Have you ever wondered how web sites can track users or how newsgroups work? How the Internet Works not only tells the reader how it works, but show -One of the most popular four-color computer books of all time, How the Internet Works visually shows users how data travels over the Internet -Its full-color, detailed graphics explain to users of all levels first hand terms and technologies -Features the latest in Internet technology such as Instant Messaging, blocking Spam and data tracking
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