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

2. Fundamentals of Information Systems, Second Edition 2 Elements of a Telecommunications System

3. Fundamentals of Information Systems, Second Edition 3 Media Types

4. Fundamentals of Information Systems, Second Edition 4 Common Wiring and Cabling Types

5. Fundamentals of Information Systems, Second Edition 5 Common Telecommunications Devices

6. Fundamentals of Information Systems, Second Edition 6 Carriers and Services Common carriers Switched lines Digital subscriber lines (DSL)

7. Fundamentals of Information Systems, Second Edition 7 Costs, Advantages, and Disadvantages of Several Line and Service Types

8. Fundamentals of Information Systems, Second Edition 8 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.

9. Fundamentals of Information Systems, Second Edition 9 Terminal-to-Host Connection

10. Fundamentals of Information Systems, Second Edition 10 File Server Connection

11. Fundamentals of Information Systems, Second Edition 11 Client/Server Connection

12. Fundamentals of Information Systems, Second Edition 12 A Typical LAN

13. Fundamentals of Information Systems, Second Edition 13 A Wide Area Network

14. Fundamentals of Information Systems, Second Edition 14 Connecting Computing Devices Using a Home Network

15. Fundamentals of Information Systems, Second Edition 15 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

16. Fundamentals of Information Systems, Second Edition 16 Common Communications Protocols

17. Fundamentals of Information Systems, Second Edition 17 Use and Functioning of the Internet

18. Fundamentals of Information Systems, Second Edition 18 U.S. Internet Usage by Age, Gender, Region, and Income

19. Fundamentals of Information Systems, Second Edition 19 Routing Messages Over the Internet

20. Fundamentals of Information Systems, Second Edition 20 How the Internet Works Internet Protocol (IP) Transport Control Protocol Uniform Resource Locator

21. Fundamentals of Information Systems, Second Edition 21 U.S. Top-Level Domain Affiliations

22. Fundamentals of Information Systems, Second Edition 22 Three Ways to Access the Internet

23. Fundamentals of Information Systems, Second Edition 23 A Representative List of Internet Service Providers

24. Fundamentals of Information Systems, Second Edition 24 Internet and Telecommunications Services

25. Fundamentals of Information Systems, Second Edition 25 Summary of Internet Services

26. Fundamentals of Information Systems, Second Edition 26 Common Abbreviations Used in Personal E-Mail

27. Fundamentals of Information Systems, Second Edition 27 Two Approaches to Electronic Data Interchange

28. Fundamentals of Information Systems, Second Edition 28 Public Network and Specialized Services

29. Fundamentals of Information Systems, Second Edition 29 The World Wide Web

30. Fundamentals of Information Systems, Second Edition 30 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)

31. Fundamentals of Information Systems, Second Edition 31 Several Interesting Web Sites

32. Fundamentals of Information Systems, Second Edition 32 Sample HTML

33. Fundamentals of Information Systems, Second Edition 33 Search Engine

34. Fundamentals of Information Systems, Second Edition 34 Web Page Providing Java Applets

35. Fundamentals of Information Systems, Second Edition 35 Intranets and Extranets

36. Fundamentals of Information Systems, Second Edition 36 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

37. Fundamentals of Information Systems, Second Edition 37 Summary of Internet, Intranet, and Extranet Users

38. Fundamentals of Information Systems, Second Edition 38 Virtual Private Network

39. Fundamentals of Information Systems, Second Edition 39 Net Issues

40. Fundamentals of Information Systems, Second Edition 40 Privacy and Security Cookie Cryptography Encryption Digital Signature

41. Fundamentals of Information Systems, Second Edition 41 Cryptography

42. Fundamentals of Information Systems, Second Edition 42 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.