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1. 

   4 out of 5

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   I am stuck using this book. It is so bad I do not know where to start . outdated, imrescipe, inconsistent and incorrect terminology, contradicting itself and what I can describe as an emotional rather than technical writing style. Lack of simple clarifying examples. Misleading figures. Many key terms are defines multiple times in a different and misleading way.Let me just give FEW exampes:1. It is so very out of date it does not even mention DSL, it goes on forever about dial-up!2. Quote: Infrared transmission operates at frequencies approaching the speed of light . I am not sure what that means, last time I checked frequency and speed were two different things.3. p. 132, Portal: a Web page that offers links to other sites . According to this ANY old web page is a portal.4. p. 165, Internet Service Provider (ISP): a specialiazed company that connects customers with PCs and browsers to the Internet . Sorry you are out of luck if you are running a server, or do not intend to use a browser!5. p.218 range for WLAN is listed as only 150 feet , VS , p.219 range for a WLAN from less than 100 to 300 feet.6. talks abotut KM (knowledge management) in Ch 5 but never defines it.7. loves imrescipe expressions with little substance like information super highway , entrance ramp to the internet , virtually unstoppable , possibilities are truly endless 8. figure 14-7 labeled Quantum computing , while displaying an eliptic curve.It feels like the author was just hurrying to get yet another book out in an area in which he lacked serious expertise.

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