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Telecommunications, the Internet, Intranets, and Extranets

Telecommunications, the Internet, Intranets, and Extranets. Chapter 4. Principles and Learning Objectives. The effective use of telecommunications and networks can turn a company into an agile, powerful, and creative organization, giving it a long-term competitive advantage.

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Telecommunications, the Internet, Intranets, and Extranets

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  1. Telecommunications, the Internet, Intranets, and Extranets Chapter 4 Fundamentals of Information Systems, Second Edition

  2. Principles and Learning Objectives • The effective use of telecommunications and networks can turn a company into an agile, powerful, and creative organization, giving it a long-term competitive advantage. • Define the term telecommunications and identify and describe the function of the components of a telecommunications system. • Identify and briefly describe three basic data processing strategies, including their advantages and disadvantages. Fundamentals of Information Systems, Second Edition

  3. Principles and Learning Objectives • The Internet is like many other technologies - it provides a wide range of services, some of which are effective and practical for use today; others are still evolving, and still others will fade away from lack of use. • Briefly describe how the Internet works, including alternatives for connecting to it and the role of Internet service providers. • Identify and briefly describe common Internet services. Fundamentals of Information Systems, Second Edition

  4. Principles and Learning Objectives • Originally developed as a document-management system, the World Wide Web is a menu-based system that is easy to use for personal and business applications. • Describe the World Wide Web and the way it works, including the use of Web browsers, search engines, Java, and other Web tools. • Define the terms intranet and extranet and discuss how organizations are using them. • Identify several control and management issues associated with the use of networks. Fundamentals of Information Systems, Second Edition

  5. Elements of a Telecommunications System Fundamentals of Information Systems, Second Edition

  6. Media Types Fundamentals of Information Systems, Second Edition

  7. Common Wiring and Cabling Types Fundamentals of Information Systems, Second Edition

  8. Common Telecommunications Devices Fundamentals of Information Systems, Second Edition

  9. Carriers and Services • Common carriers • Switched lines • Digital subscriber lines (DSL) Fundamentals of Information Systems, Second Edition

  10. Costs, Advantages, and Disadvantages of Several Line and Service Types Fundamentals of Information Systems, Second Edition

  11. Networks and Distributed Processing • Computer network - communications media, devices, and software needed to connect two or more computer systems. • Centralized processing - processing occurs in a single location or facility. • Decentralized processing - processing devices are placed at various locations. • Distributed processing - computers are placed at remote locations but are connected to each other via telecommunications devices. Fundamentals of Information Systems, Second Edition

  12. Terminal-to-Host Connection Fundamentals of Information Systems, Second Edition

  13. File Server Connection Fundamentals of Information Systems, Second Edition

  14. Client/Server Connection Fundamentals of Information Systems, Second Edition

  15. A Typical LAN Fundamentals of Information Systems, Second Edition

  16. A Wide Area Network Fundamentals of Information Systems, Second Edition

  17. Connecting Computing Devices Using a Home Network Fundamentals of Information Systems, Second Edition

  18. Communications Software and Protocols • Communications software - provides a number of important functions in a network • Network operating system - controls the computer systems and devices on a network and allows them to communicate with each other • Network management software - a manager can monitor the use of individual computers and shared hardware • Communications protocol - rules and standards that make communications possible Fundamentals of Information Systems, Second Edition

  19. Common Communications Protocols Fundamentals of Information Systems, Second Edition

  20. Use and Functioning of the Internet Fundamentals of Information Systems, Second Edition

  21. U.S. Internet Usage by Age, Gender, Region, and Income Fundamentals of Information Systems, Second Edition

  22. Routing Messages Over the Internet Fundamentals of Information Systems, Second Edition

  23. How the Internet Works • Internet Protocol (IP) • Transport Control Protocol • Uniform Resource Locator Fundamentals of Information Systems, Second Edition

  24. U.S. Top-Level Domain Affiliations Fundamentals of Information Systems, Second Edition

  25. Three Ways to Access the Internet Fundamentals of Information Systems, Second Edition

  26. A Representative List of Internet Service Providers Fundamentals of Information Systems, Second Edition

  27. Internet and Telecommunications Services Fundamentals of Information Systems, Second Edition

  28. Summary of Internet Services Fundamentals of Information Systems, Second Edition

  29. Common Abbreviations Used in Personal E-Mail Fundamentals of Information Systems, Second Edition

  30. Two Approaches to Electronic Data Interchange Fundamentals of Information Systems, Second Edition

  31. Public Network and Specialized Services Fundamentals of Information Systems, Second Edition

  32. The World Wide Web Fundamentals of Information Systems, Second Edition

  33. The World Wide Web An Internet service comprising tens of thousands of independently owned computers that work together as one. • Home page • Hypermedia • Hypertext markup language (HTML) Fundamentals of Information Systems, Second Edition

  34. Several Interesting Web Sites Fundamentals of Information Systems, Second Edition

  35. Sample HTML Fundamentals of Information Systems, Second Edition

  36. Search Engine Fundamentals of Information Systems, Second Edition

  37. Web Page Providing Java Applets Fundamentals of Information Systems, Second Edition

  38. Intranets and Extranets Fundamentals of Information Systems, Second Edition

  39. Intranets and Extranets • Intranet – an internal corporate network built using Internet and WWW standards and products • Extranet - a network that links selected resources of the intranet of a company with its customers, suppliers, or other business partners • Virtual private network - a secure connection between two points across the Internet • Firewall - a device that sits between your internal network and the outside Internet Fundamentals of Information Systems, Second Edition

  40. Summary of Internet, Intranet, and Extranet Users Fundamentals of Information Systems, Second Edition

  41. Virtual Private Network Fundamentals of Information Systems, Second Edition

  42. Net Issues Fundamentals of Information Systems, Second Edition

  43. Privacy and Security • Cookie • Cryptography • Encryption • Digital Signature Fundamentals of Information Systems, Second Edition

  44. Cryptography Fundamentals of Information Systems, Second Edition

  45. Summary • Networks - used to share hardware, programs, and databases across the organization. • Internet - transmits data from one computer (called a host) to another. • The Web - a collection of tens of thousands of independently owned computers that work together as one in an Internet service. Fundamentals of Information Systems, Second Edition

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