Internet and WebLecture 6
• Discuss origins of internet and web• How to access web• Discuss internet communications• Describe search engines• Discus...
The Internet• Referred to as the informationsuperhighway that connects you tomillions of other people and organisations• I...
The internet• Launched in 1969– United States funded a project namedAdvanced Research Project Agency Network(ARPANET)• The...
Internet and Web• Internet is the physical network made ofwires and satellites• The Worldwide web is the multimediainterfa...
Internet Access• Service providers– National level– Regional level– International level• Browsers• Uniform Resource Locato...
Web sites• Hyper Text Markup Language (HTML)• Hyperlinks• Web Servers
Communication• E-mail or Electronic Mail– Address– Subject– Message– Attachments• Precautions• Discussion groups– Twitter–...
Search tools• Search Engines– Keyword search– Directory search• Metasearch engines• Specialised search engines
E Commerce• Business to consumer (B2C)– Web store fronts– Auction house sites• Consumer to consumer (C2C)– Web auctions• B...
E Commerce• Comparison sites• Security– Payments– Phishing sites ( Bogus Sites)– Spywares• Web utilities– TELNET– FTP– Plu...
SPYWARES• Spyware is any technology that aids ingathering information about a person ororganization without their knowledg...
PLUGINS• A software plug-in is an add-on for aprogram that adds functionality to it. Forexample, a Photoshop plug-in (such...
Summary• What is internet and the Web• Different components of internet access– Service provider, browser, website• Intern...
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6 internet and web

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6 internet and web

  1. 1. Internet and WebLecture 6
  2. 2. • Discuss origins of internet and web• How to access web• Discuss internet communications• Describe search engines• Discuss electronic commerce• Web utilities
  3. 3. The Internet• Referred to as the informationsuperhighway that connects you tomillions of other people and organisations• Is used for– Communication– Shopping– Searching– Entertainment– Education
  4. 4. The internet• Launched in 1969– United States funded a project namedAdvanced Research Project Agency Network(ARPANET)• The Web also known as WWW waslaunched in 1992 at Center for EuropeanNuclear Research in Switzerland
  5. 5. Internet and Web• Internet is the physical network made ofwires and satellites• The Worldwide web is the multimediainterface to resources available on theinternet
  6. 6. Internet Access• Service providers– National level– Regional level– International level• Browsers• Uniform Resource Locators (URLs)– Protocol– Domain name– Domain code
  7. 7. Web sites• Hyper Text Markup Language (HTML)• Hyperlinks• Web Servers
  8. 8. Communication• E-mail or Electronic Mail– Address– Subject– Message– Attachments• Precautions• Discussion groups– Twitter– Chat groups– Instant messaging
  9. 9. Search tools• Search Engines– Keyword search– Directory search• Metasearch engines• Specialised search engines
  10. 10. E Commerce• Business to consumer (B2C)– Web store fronts– Auction house sites• Consumer to consumer (C2C)– Web auctions• Business to business (B2B)– Supplier to manufacturer– Producer to seller
  11. 11. E Commerce• Comparison sites• Security– Payments– Phishing sites ( Bogus Sites)– Spywares• Web utilities– TELNET– FTP– Plug-ins– Filters
  12. 12. SPYWARES• Spyware is any technology that aids ingathering information about a person ororganization without their knowledge. Onthe Internet (where it is sometimes calleda spybot or tracking software), spyware isprogramming that is put in someonescomputer to secretly gather informationabout the user and relay it to advertisersor other interested parties. Spyware canget in a computer as a software virus or asthe result of installing a new program.
  13. 13. PLUGINS• A software plug-in is an add-on for aprogram that adds functionality to it. Forexample, a Photoshop plug-in (such asEye Candy) may add extra filters that youcan use to manipulate images. A browserplug-in (such as Macromedia Flash orApple QuickTime) allows you to playcertain multimedia files within your Webbrowser. VST plug-ins add effects foraudio recording and sequencing programssuch as Cubase and Logic Audio.
  14. 14. Summary• What is internet and the Web• Different components of internet access– Service provider, browser, website• Internet communication• Internet Search• E Commerce

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