it is only by using the OSI Model as the basis for categorization, that this clarity has been developed. Thus, the author has illustrated the OSI Models great usefulness as a tool for analyzing communication systems. It is now clear that the Open System Interconnection reference model is quite a powerful tool; this is the secret of its success in the field of computer networking, and this is also the key to its use in other areas of communication as well.Works CitedDerfler, Frank J., Jr., and Les Freed. How Networks Work. California: Macmillian Computer Publishing, 1996.Dicerto, Joseph J. The Pony Express: Hoofbeats In The Wilderness. New York: FranklinWatts, 1989.Fortino, Andres, and Arnold Villeneuve. Networking Technologies: A Complete Guide To Passing The Novell CNE Exam. New York: The McGraw-Hill Companies, Inc., 1996.Introduction To Networking. Diskette. 1992.Networking Technologies. Diskette. 1992.Oslin, George P. Pony Express. Encyclopedia Americana. 1999 ed.Pony Express. Microsoft Encarta 98 Encyclopedia. CD-ROM. Microsoft, 1997.Settle, Raymond W., and Mary Lund Settle. Saddles and Spurs: The Pony Express Saga. Lincoln: University of Nebraska Press, 1955.Stamper, David A. Business Data Communications. 5th ed. Massachusetts: Addison Wesley Longman, Inc., 1999.Shelly, Gary B., Cashman, Thomas J., and Judy A. Serwatka. Business Data Communications: Introductory Concepts and Techniques. 2nd ed. Massachusetts: Course Technology, 1998....
