301 Intro To Internet

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Introduction to the Internet class given as a volunteer at the Socastee SC public library

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301 Intro To Internet

  1. 1. A link to and discussion of this presentation on the web can be found on my blog. Go to http:WhiteHouseComputing.Blogspot.Com and scroll down if necessary to “Intro to the Internet” Introduction to the Internet Socastee Public Library Computer Class 301
  2. 2. Introduction to the Internet Socastee Public Library Computer Class 301 From www.computertipsntricks.com
  3. 3. Introduction to the Internet <ul><li>What is the Internet? </li></ul>“ The Internet is a global system of interconnected computer networks ….. a network of networks …. millions of private and public, academic, business, and government networks….The Internet carries a vast array of information resources and services, most notably the inter-linked hypertext documents of the World Wide Web (WWW) and the infrastructure to support electronic mail .” Wikipedia
  4. 4. Introduction to the Internet <ul><li>How Can I Get My Computer Connected to the Internet? </li></ul>Internet Service Providers (ISPs) $$ You connect to them They connect you to the Internet
  5. 5. Introduction to the Internet <ul><li>An Internet Service Provider (ISP) provides Internet access </li></ul><ul><li>Dialup: </li></ul><ul><ul><li>From computer through a modem to your ISP </li></ul></ul><ul><ul><li>Cannot use same telephone line for voice call at the same time </li></ul></ul><ul><ul><li>Most newish computers have dialup modems included </li></ul></ul><ul><ul><li>slow sloow slooow sloooow very slooooooow </li></ul></ul>Types of Access:
  6. 6. Introduction to the Internet <ul><li>An Internet Service Provider (ISP) provides Internet access </li></ul><ul><li>Digital Subscriber Line – DSL </li></ul><ul><ul><li>Needs special DSL modem </li></ul></ul><ul><ul><li>CAN use same phone line at same time for voice call </li></ul></ul><ul><ul><li>Always on, no dialing required by man or machine </li></ul></ul><ul><ul><li>Much faster than dialup, slower than Cable </li></ul></ul>Types of Access :
  7. 7. Introduction to the Internet <ul><li>An Internet Service Provider (ISP) provides Internet access </li></ul><ul><li>Cable </li></ul><ul><ul><li>Requires cable (as in TV cable) in house </li></ul></ul><ul><ul><ul><li>contract needed with cable company like </li></ul></ul></ul><ul><ul><ul><ul><li>HTC is in both the telephone and the cable business </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Time Warner is another SC cable provider </li></ul></ul></ul></ul><ul><ul><li>Uses special cable modem </li></ul></ul><ul><ul><li>As fast as and frequently faster than DSL </li></ul></ul>Types of Access : Watch Cable vs DSL click here
  8. 8. Introduction to the Internet WWW – The World Wide Web “ The Web , is a system of interlinked hypertext documents contained on the Internet .” Wikipedia “ Hypertext is text displayed on a computer or other electronic device with references ( hyperlinks ) to other text that the reader can immediately access, usually by a mouse click or keypress sequence.” Wikipedia Lets build some hypertext. We will turn this into a hyperlink
  9. 9. Introduction to the Internet WWW – The World Wide Web <ul><li>“ Web Browser : Software used to display the World Wide Web and often the Internet in general. </li></ul><ul><ul><li>Examples include </li></ul></ul><ul><ul><ul><li>Internet Explorer , </li></ul></ul></ul><ul><ul><ul><li>Mozilla Firefox , </li></ul></ul></ul><ul><ul><ul><li>Opera , </li></ul></ul></ul><ul><ul><ul><li>Safari and </li></ul></ul></ul><ul><ul><ul><li>Google Chrome “ Wikitionary </li></ul></ul></ul>
  10. 10. Introduction to the Internet WWW – The World Wide Web <ul><li>Web page : a single file that loads into a web browser at one time. </li></ul><ul><li>Website : A website is a collection of pages on the WWW, all of which appear to come from the same “server” computer. </li></ul><ul><li>HTML – Hypertext Markup Language – the language that tells the web browser what to display and how to display it </li></ul><ul><ul><li>Web servers store and deliver HTML </li></ul></ul>
  11. 11. Introduction to the Internet WWW – The World Wide Web <ul><li>Domain Name Endings: </li></ul><ul><ul><li>.Com – Commercial, personal, or miscellaneous sites </li></ul></ul><ul><ul><li>.edu – school, usually college site </li></ul></ul><ul><ul><li>.org – non-profit organization site </li></ul></ul><ul><ul><li>.net – networks or ISPs </li></ul></ul><ul><ul><li>.gov – American government site </li></ul></ul>
  12. 12. Introduction to the Internet WWW – The World Wide Web <ul><li>Finding Web sites </li></ul><ul><ul><li>Search engine: “A web search engine is designed to search for information on the World Wide Web .” Wikipedia </li></ul></ul><ul><ul><li>Examples: </li></ul></ul><ul><ul><ul><li>Google </li></ul></ul></ul><ul><ul><ul><li>Microsoft’s search engine, Bing </li></ul></ul></ul><ul><ul><ul><li>Yahoo </li></ul></ul></ul><ul><ul><ul><li>Many others </li></ul></ul></ul>
  13. 13. Introduction to the Internet WWW – The World Wide Web <ul><li>Finding Web sites </li></ul><ul><ul><li>Web Directory : “lists web sites by category and subcategory.” Wikipedia </li></ul></ul><ul><ul><li>Examples: </li></ul></ul><ul><ul><ul><li>Yahoo </li></ul></ul></ul><ul><ul><ul><li>The Open Directory Project </li></ul></ul></ul>
  14. 14. Introduction to the Internet Security Secure Web Sites: look for the lock or the https:// instead of http://
  15. 15. Introduction to the Internet Security Phishing : (sounds like “Fishing”) Don’t get caught
  16. 16. Introduction to the Internet Security Computer Virus – install and keep up to date good antivirus software
  17. 17. Introduction to the Internet Security Spyware – install and keep up to date good antivirus software
  18. 18. Introduction to the Internet <ul><li>The End </li></ul>

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