Understanding Data Communications, Seventh Edition is the modern bible of data communications. Covering a vast range of topics from networking to security, this book focuses on the present and future of data communications. You�ll learn about the numerous technologies that provide individuals, corporations, government agencies, and countries the ability to work smarter and learn faster. This book provides the detailed information necessary to understand how different communications technologies (from wired to wireless LANs to satellite systems) operate and how they can be used. Organized like its highly successful 6th edition, this book can be tailored to the needs of both the computer professional and student.In Understanding Data Communications you will�

� Learn complex data communications concepts clearly and concisely within a tutorial format from an award- winning author

� Learn how different types of transmission systems operate

� Understand how to set up wired and wireless LANs

� Obtain an appreciation for the evolution and utilization of communications technology

� Acquire knowledge concerning the use of security tools and techniques

� Learn how the TCP/ IP protocol suite operates and its role in supporting Internet applications

� Become conversant in the latest data communications technologies to include voice over IP

About the Author

Gilbert Held is an internationally recognized author and lecturer who specializes in the applications of computer and communications technology. He is a frequent lecturer and conducts seminars on topics such as LAN/WAN internetworking, data compression, and PC hardware and software. Held is the author of more than 40 books on computers and communications technology and has won several awards for his technical excellence in writing.

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