Business Data Communications: Introductory Concepts and Techniques, Fourth Edition
Index
Gary B. Shelly | Thomas J. Cashman | Judy A. Serwatka

Compras Nikon
Bluetooth
1 Out of touch
This book is a big disappointment. In the rapidly changing field of information technology, it is important to stay somewhat up to date with technology. Although the copyright date is 1997, most of the book has not changed since its first edition (circa 1990?).

This book contains such gems as "Today the ARCNET protocol is widely used in a variety of LANS (Page 7-16)" Ha!

The authors also go into great detail about the wonderous SNA protocol, choices regarding terminals, etc.

TCPIP is listed as a 'Wide Area Networking Protocol' and is not listed under the LAN section.

Some 'recent updates' to the second edition talk about the Internet. The inform the reader about valuable Internet utilities such as Gopher and Archie?

According to this book and a question from the exam pool, Ethernet is used on bus networks only...not star.

This is the worst excuse for a technology book I have ever seen. They should rename it 'History of Data Communications'


Thursday, 24-Jul-2008 03:17:41 CDT
Quote of the Day:


After this was written there appeared a remarkable posthumous memoir that

throws some doubt on Millikan's leading role in these experiments.  Harvey

Fletcher (1884-1981), who was a graduate student at the University of Chicago,

at Millikan's suggestion worked on the measurement of electronic charge for

his doctoral thesis, and co-authored some of the early papers on this subject

with Millikan.  Fletcher left a manuscript with a friend with instructions

that it be published after his death; the manuscript was published in

Physics Today, June 1982, page 43.  In it, Fletcher claims that he was the

first to do the experiment with oil drops, was the first to measure charges on

single droplets, and may have been the first to suggest the use of oil.

According to Fletcher, he had expected to be co-authored with Millikan on

the crucial first article announcing the measurement of the electronic

charge, but was talked out of this by Millikan.

		-- Steven Weinberg, "The Discovery of Subatomic Particles"



Robert Millikan is generally credited with making the first really

precise measurement of the charge on an electron and was awarded the 

Nobel Prize in 1923.






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