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Understanding the Internet

Understanding the Internet. CHAPTER ONE How the Internet is Changing the World. The Big Picture. The Internet is a huge collection of computers all over the world that are connected in various ways. Common Uses of the Internet. Electronic Mail Information Sharing and Resources

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Understanding the Internet

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  1. Understanding the Internet CHAPTER ONE How the Internet is Changing the World

  2. The Big Picture The Internet is a huge collection of computers all over the world that are connected in various ways.

  3. Common Uses of the Internet Electronic Mail Information Sharing and Resources Business Communications Advertising Online Shopping Stock Trading Discussions and Chat Entertainment Program Downloads

  4. The Internet is an Information Super Highway

  5. What is the Internet? The Internet is a huge network comprised of millions of computers worldwide. It is set up with clients and servers.

  6. Who Has Internet Access?

  7. What is WWW? What is a URL? Click here to find out! The World Wide Web is a graphical user-friendly interface

  8. Indicates the method the browser will use to retrieve the page http://www.pearsoneducation.com Indicates the Web site location

  9. How Can I Find the Internet? • A Web Browser • Microsoft Internet Explorer • Netscape Navigator

  10. MCI Mail and CompuServe ARPANET MILNET NSFnet 1969 1983 1985 1989 Origins of the Internet

  11. Protocols • Network Control Protocol (NCP) • Transmission Control Protocol (TCP) • Internet Protocol (IP)

  12. Growth of the Internet

  13. Backbone Key Points • Hubs • Switches • Router • Packets • ISP • PoP

  14. How Information Travels Local ISP RegionalNetwork Interstate

  15. The Impact of the Internet • Electronic commerce and online shopping • Stock trading and finances • Communications • Information sharing • Telecommuting and home-based businesses • Jobs • Education • Entertainment and travel

  16. Controversial Issues • Privacy • Free Speech • Government Control and Surveillance

  17. Internet Technologies and Trends • Greater concerns over securing data, maintaining privacy, and fighting cybercriminals • More universal access to the Internet • An increasing number of people using high speed (broadband) Internet access • More fiber optic cable and other cutting-edge technologies

  18. Internet Technologies and Trends • Increased use of wireless devices and personal digital assistants (PDAs) • Greater government control over Internet content • Increased electronic surveillance by government • The use of biometrics

  19. Don’t Forget! • The Internet has a colorful and interesting background. • began as a way for the Department of Defense to communicate remotely • mushroomed into a gigantic conglomeration of networks which span the world

  20. Don’t Forget! • The supporting structure for the Internet is not controlled by any one organization. • Decentralization is intentional so communication can continue even if part of the Internet is destroyed by a natural or man-made disaster.

  21. Don’t Forget! • The Internet is used for a wide variety of tasks • e-mail, • online shopping, • stock trading, • sharing information, • real-time communications, and • job-related tasks

  22. Don’t Forget! • The Internet, by its very nature and strategic position, raises issues and concerns such as • privacy, • security, • freedom of speech, and • government control and monitoring • As new technologies emerge and more people begin to use the Internet, issues will become more prominent.

  23. Questions?

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