Chapter 1. The Online World

Today's online world has changed dramatically in the last decade. Back then, online to the average user meant a telephone connection directly to either another computer or to an online service, such as CompuServe or AOL. The Internet now dominates all online activity. In popular parlance, the Internet is synonymous with the World Wide Web, although it is much more, as we'll explain in this book.

The Internet can be described generally as a “network” of networks. It is a transportation vehicle for applications. In fact, the visual representations of the Net look like a road map. If lines are drawn between each connection, between larger and larger connections, and between smaller and smaller ones, the end result is ...

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