tailieunhanh - Lecture Business data communications and networking (8e): Chapter 1 - Jerry Fitzgerald, Alan Dennis

Chapter 1 - Introduction to data communications. In this chapter, the following content will be discussed: Brief history, data communications networks, network models, network standards, future trends. | Business Data Communications and Networking 8th Edition Jerry Fitzgerald and Alan Dennis John Wiley & Sons, Inc Prof. M. Ulema Manhattan College Computer Information Systems 1 - Copyright 2005 John Wiley & Sons, Inc Chapter 1 Introduction to Data Communications 1 - Copyright 2005 John Wiley & Sons, Inc Outline Brief history Communications, Information Systems and the Internet Data Communications Networks Network components, network types Network Models OSI model, Internet model, Layers Network Standards Standards making, common standards Future Trends Pervasive networking, integration of voice, video, and data, new information services 1 - Copyright 2005 John Wiley & Sons, Inc Information Age First Industrial Revolution Introduction of machinery New organizational methods Changed the way people worked Second Industrial Revolution – Information Age Introduction of computers Introduction of networking and data communication Changed the way people worked again Faster . | Business Data Communications and Networking 8th Edition Jerry Fitzgerald and Alan Dennis John Wiley & Sons, Inc Prof. M. Ulema Manhattan College Computer Information Systems 1 - Copyright 2005 John Wiley & Sons, Inc Chapter 1 Introduction to Data Communications 1 - Copyright 2005 John Wiley & Sons, Inc Outline Brief history Communications, Information Systems and the Internet Data Communications Networks Network components, network types Network Models OSI model, Internet model, Layers Network Standards Standards making, common standards Future Trends Pervasive networking, integration of voice, video, and data, new information services 1 - Copyright 2005 John Wiley & Sons, Inc Information Age First Industrial Revolution Introduction of machinery New organizational methods Changed the way people worked Second Industrial Revolution – Information Age Introduction of computers Introduction of networking and data communication Changed the way people worked again Faster communication Collapsing Information lag Brought people together Globalization 1 - Copyright 2005 John Wiley & Sons, Inc Collapsing Information Lag 1900 1950 2004 1850 huge quantities of information transmitted in a fraction of a second. telegraph Information took days or weeks to be transmitted Information transmitted in minutes or hours Electronic communications sped up the rate of transmission of information, growth of telecommunications and especially computer networks globalization phenomenon (WWW) 1 - Copyright 2005 John Wiley & Sons, Inc Three Faces of Networking Fundamental concepts of networking How data moves from one computer to another over a network Theories of how network operate Technologies in use today How theories are implemented, specific products How do they work, their use, applications Management of networking technologies Security Network Design Managing the network 1 - Copyright 2005 John Wiley & Sons, Inc Advances in Phone Technology 1876 Phone .