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Introduction to the Internet

Introduction to the Internet. Your Name Goes Here. The Internet. A network of networks Began in 1969 as ARPAnet (Advanced Research Projects Agency) No central authority and thus impossible to state the precise size The Internet is not free just because you do not pay for it.

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Introduction to the Internet

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  1. Introduction to the Internet Your Name Goes Here

  2. The Internet • A network of networks • Began in 1969 as ARPAnet (Advanced Research Projects Agency) • No central authority and thus impossible to state the precise size • The Internet is not free just because you do not pay for it

  3. The World Wide Web • A subset of the Internet consisting of all computers with hypertext or hypermedia documents • These documents contain references (links) to other documents which may be on a different computer anywhere in the world • Began in 1991 at the European Particle Physics Laboratory (CERN) in Switzerland

  4. A Client/Server Model • A server (Web server or Web site) is any computer that stores hypermedia documents and furnishes them upon request • Aclient is any computer that requests, then displays hypermedia documents • Every client must be able to display every document from every server and does so through a browser (e.g., Netscape or Internet Explorer)

  5. Acronyms Abound • HTTP – HyperText Transfer Protocol is used to transmit Web documents • HTTPS – Secure protocol for confidential transactions • HTML – HyperText Markup Language is the language for all Web Documents • ISP – Internet Service provider

  6. Connecting to the Internet • At Work or School • Via a Local Area Network • At Home • Traditional Modem (56KB) • Cable Modem • DSL Modem

  7. http://www.annex.com/southwest/museum.htm Document Path (Directory or Folder) Internet Address (Web site) Means of access, HyperText Transfer Protocol Uniform Resource Locator (URL)

  8. URL Format • You can guess at the URL using the general form of an “www.company.com” • Examples: • www.microsoft.com • www.nba.com • www.dell.com • www.whitehouse.gov • www.miami.edu

  9. Suggestions for Searching • Use the Search button on the Internet Explorer Toolbar • Try multiple search engines on one query • Be aware of logical operators - AND, OR, and NOT • Search on a concept; e.g., “first ladies” rather than “Eleanor Roosevelt” • Set Bookmarks/Favorites

  10. A Good Place to Start

  11. E-commerce • The exchange of goods and services • Buyer and seller • Products and suppliers • A place to “meet” • Marketing to attract the buyer • Accept and process the order • All of these elements are present in e-commerce and traditional commerce

  12. For the Seller Open 24/7 Shoppers from anywhere Virtual inventory is cheaper and extensive Lower transaction costs Target your customers For the Buyer Open 24/7 Never leave home Easy to view and explore product line Comparison shop Web site knows you Advantages of E-commerce

  13. Security and Privacy • Secure transactions • Https protocol • Encryption • Privacy • Cookie is a small file written to your disk each time you visit a site • Problem is when one site can read many cookies; e.g. Double Click.com

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