4545604-Telecommunications-and-Networks(6) - Chapter 6...

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Chapter 6 Telecommunications and Networks James A. O'Brien, and George Marakas. Management Information Systems with MISource 2007, 8 th ed. Boston, MA: McGraw-Hill, Inc., 2007. ISBN: 13 9780073323091
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Chapter 6 Telecommunications and Networks 2 Understand the concept of a network Apply Metcalfe’s law in understanding the value of a network Identify major developments and trends in the industries, technologies, and business applications of telecommunications and Internet technologies Provide examples of the business value of Internet, intranet, and extranet applications Identify the basic components, functions, and types of telecommunications networks used in business Explain the functions of major components of telecommunications network hardware, software, media, and services Explain the concept of client/server networking Understand the two forms of peer-to-peer networking Explain the difference between digital and analog signals Identify the various transmission media Learning Objectives
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Chapter 6 Telecommunications and Networks 3 Case 1 Wireless Mobile Applications Best Buy’s Geek Squad remains connected via a Pocket PC phone It connects wirelessly to Best Buy’s IT and ordering system It also have Web browsing capabilities, for access to Google and Yahoo maps Handwriting recognition software bypasses small keyboard problem Voice recognition is being tested
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Chapter 6 Telecommunications and Networks 4 Case 1 Wireless Mobile Applications Biggest problems Lack of application software Reduced functionality of software that exists Requires middleware to synchronize data between back-end systems and the devices Applications don’t always meet worker’s needs
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Chapter 6 Telecommunications and Networks 5 Case Study Questions What are the business advantages and limitations of the Best Buy Geek Squad’s use of their wireless Pocket PC mobile devices? How have they overcome the limitations? What are the software development challenges of wireless mobile devices? How are MedStar Health and Unifi meeting those challenges? Why don’t the companies in this case use some of the thousands of software packages available for their wireless mobile devices? What are the advantages and limitations of this approach?
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Chapter 6 Telecommunications and Networks 6 Network Concepts A network is an interconnected or interrelated chain, group, or system The number of possible connections on a network is N ( N –1) or N 2 N N = number of nodes (points of connection) Example: 10 computers on a network = 10(10–1) = 10x9 = 90 possible connections
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Chapter 6 Telecommunications and Networks 7 Metcalfe’s Law The usefulness, or utility, of a network equals the square of the number of users The more users on a network, the more useful it becomes Until critical mass is reached, a change in technology only affects the technology Once critical mass is attained, social, political, and economic systems change
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This note was uploaded on 08/15/2010 for the course COMPUTER E IT-402 taught by Professor Muhammadkashifshaikh during the Spring '10 term at Sir Syed University of Engineering &Technology.

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4545604-Telecommunications-and-Networks(6) - Chapter 6...

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