Old and very out-dated book on Internet technologies back in the pioneer days of the early 90's. An interesting look back in time, though. Most all the examples use a text-based UNIX shell. Just an example: the World Wide Web is discussed in chapter 24. A whopping 16 pages! Quote from a hint box: "When you use a browser that supports a mouse, you can select a link by clicking on it."
Yep, those were the good-old-days!