Principles of Information Systems - Chapter 7

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Principles of Information Systems Sixth Edition, Written by Ralph Star, George Reynolds

Principles of Information Systems Sixth Edition, Written by Ralph Star, George Reynolds

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  • Chapter 7, The Internet, Intranets, and Extranets, covers the Internet and its use and effects. After studying chapter 7, you should be able to address the learning objectives described in the next 3 slides.

Transcript

  • 1. The Internet, Intranets, and Extranets Chapter 7
  • 2. 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 the services associated with the Internet.
  • 3. 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 how it works.
      • Explain the use of Web browsers, search engines, and other Web tools.
  • 4. Principles and Learning Objectives
    • Before the Internet and the World Wide Web become universally used and accepted for business use, management issues; service and speed issues; and fraud, security, and unauthorized Internet sites must be addressed and solved.
      • Identify who is using the Web to conduct business and discuss some of the pros and cons of Web shopping.
      • Outline a process for creating Web content.
      • Describe Java and discuss its potential impact on the software world.
      • Define the terms intranet and extranet and discuss how organizations are using them.
      • Identify several issues associated with the use of networks.
  • 5. Use and Functioning of the Internet
  • 6. Use and Functioning of the Internet
    • ARPANET
    • Internet Protocol (IP)
    • Wireless Internet
    • Research for a faster Internet
      • Internet2 (I2)
      • Next Generation Internet (NGI)
      • Corporate efforts
  • 7. Routing Messages Over the Internet
  • 8. U.S. Internet Usage
  • 9. How the Internet Works
    • Hosts
    • Routers forward packets to other networks
    • Internet Protocol Stack (TCP/IP)
      • Internet Protocol (IP)
      • Transport Control Protocol (TCP)
    • Backbones
  • 10. Uniform Resource Locator (URL)
    • http://www.course.com
    Hypertext transfer protocol World Wide Web Domain category Host Network Name
  • 11. U.S. Top Level Domain Affiliations
  • 12. Accessing the Internet
    • Connection via a LAN server
      • Network adapter card
      • Open Datalink Interface (ODI)
      • Network Driver Interface Specification (NDIS)
  • 13. Accessing the Internet
  • 14. Internet Service Providers (ISPs)
    • Provide Internet access to account holders
    • Monthly fee varies
    • Some are free
  • 15. Internet Service Providers (ISPs)
  • 16. Internet Services
  • 17. Internet Services
  • 18. Internet Services
  • 19. E-mail and Instant Messaging
  • 20. ICQ
  • 21. Usenet Newsgroups
  • 22. Internet Phone and Videoconferencing Services
  • 23. Other Internet Services
  • 24. The World Wide Web
  • 25. The World Wide Web
    • Menu-based system that uses client/server model
    • Hypermedia
    • HTML, XML
    • Web browsers
    • Java
    • Search engines
      • Keyword indexes: fast & broad
      • Subject indexes: focused searches
  • 26. Interesting Web Sites
  • 27. Hypertext Markup Language
  • 28. Google
  • 29. Popular Search Engines
  • 30. Java
  • 31. Java
  • 32. CVS.com
  • 33. Intranets and Extranets
  • 34. Intranet
    • Internal corporate network built using Internet and World Wide Web standards and products
    • Slashes the need for paper
    • Provides employees with an easy and intuitive approach to access information that was previously difficult to obtain
  • 35. Intranet
  • 36. Extranet
    • A network that links selected resources of the intranet of a company with its customers, suppliers, or other business partners.
  • 37. Internet, Intranet, and Extranet Users
  • 38. Virtual Private Network
  • 39. Developing Web Content
    • Computer must be linked to a Web server
    • Need Web browser program
    • Add links to home page
    • Advertise
    • Tools
      • Word processors
      • HTML editor
      • HTML template
      • Text editor
  • 40. Push Technology
    • Used to send information automatically over the Internet
    • Relies on HTTP or Java technology
    • Drawbacks include:
      • Information overload
      • Volume of data broadcast
  • 41. Business Uses of the Web
    • E-mail
    • Linking buyers and sellers
    • Tool for marketing, sales, and customer support
    • Low-cost alternative to fax or express mail
  • 42. Net Issues
    • Management issues
    • Service and speed issues
      • Routers can become bottlenecks
      • Connection agreements
  • 43. Net Issues
    • Privacy
      • Cookie : text file placed on the hard disk of a computer system
    • Fraud
    • Security with encryption and firewalls
      • Digital signature
      • Cyphertext
      • Cryptography
    • Unauthorized sites
  • 44. Cryptography
  • 45. FedCIRC
  • 46. The Web in Three Dimensions
  • 47. Summary
    • Internet - started with ARPANET, a project started by the U.S. Department of Defense (DOD)
    • Internet services include:
      • E-mail
      • Telnet
      • FTP
      • Usenet and newsgroups
      • Chat rooms
    • Web site - like a magazine, with a cover page called a home page that has graphics, titles, black and highlighted text