ch06_v8_notes - 1 Essentials of Business Information...

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Essentials of Business Information Systems, 8E Chapter 6 Telecommunications, the Internet and Wireless Technology Anytime, anywhere, anyway, is the mantra of many computer users. Improved telecommunications technologies, the process of electronically communicating information, are making it possible. Looking for an example of how much this revolution is touching every aspect of how we work, live, play, and learn? Look no further than this page–you wouldn’t be reading this if it weren’t for telecommunication networks! 6.1 Telecommunications and Networking in Today’s Business World This section shows you how these networks are actually constructed and discusses the various elements involved in connecting all these computers. Knowing how it all works can give you insight into the changes that have taken place and an idea of what the future holds. You can also get ideas about how you can take advantage of the future now! Networking and Communication Trends For the most part, all of us have grown up with separate service providers and networks for our land-based telephones, cellular phones, and computers. We’ve been used to the idea that television cable service was separate from satellite service. Radio was separate albeit free. If we wanted a new music album or movie, we went to the local store. Now all of these telecommunication services are converging on the Internet and either blurring or destroying the lines of demarcation. It will become harder to determine where one ends and another starts as high-speed broadband network connections continue to expand and companies continue to develop products that meet consumer demands. “Technology’s general impact on the world will most likely become more pervasive and comprehensive than ever in 2006. However the technology- based products and services with the greatest impact on the bottom line will likely be those that permanently change common human behaviors. Among them will likely be products and services whose trade name ultimately becomes part of the dictionary.” (Deloitte TMT Trends: Predictions, 2006; What Is a Computer Network? 1
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Before we go much further, let’s make sure you understand how computer networks are configured. Figure 6-1 shows a simple network structure. Figure 6-1: Components of a Simple Network. What you should keep in mind is that you can continually add components to this kind of network and expand it exponentially. You can take a simple desktop computer and by way of a Network Interface Card (NIC), incorporate it into an existing network. To share network resources such as printers, and to route communications on a LAN, you require special software called a Network Operating System (NOS). Hubs and switches help route traffic on the network to the right computing device. When two or more networks are connected to each other, you need a router that sends data transmissions to the correct network device. Very large networks may require multiple routers so transmissions flow more quickly. Networks in Large Companies
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ch06_v8_notes - 1 Essentials of Business Information...

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