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The Internet

The Internet. Week 2. Cyberspace- Definitions. People using the new technology to communicate with one another Person to person communication - that is many-to-many The use of computer technology. Everyday Uses in Cyberspace. 1980’s Word Processing, Document preparation

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The Internet

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  1. The Internet Week 2

  2. Cyberspace- Definitions • People using the new technology to communicate with one another • Person to person communication - that is many-to-many • The use of computer technology

  3. Everyday Uses in Cyberspace • 1980’s • Word Processing, Document preparation • Telecommuting, Teleworking • Children’s games, Recreation

  4. Everyday Uses of Cyberspace • 1990’s until Today • Children’s school work, Education • Adult Remote Education at home • Family/Friends Communications, Correspondence • Reading News events, casual reading • Family Travel, Recreation • Family Records • Home Banking, Financial Management • Facebook, etc.

  5. Everyday Uses of Cyberspace • In-store and other purchases • ATM, Debit card • Home Shopping • TV, on-line services, Smartphones • Food Preparation • multimedia, TV, On-line services

  6. Everyday Uses of Cyberspace • Future (almost here) • Household Automated Tasks • Smart home • Smart appliances • Home robotics • Home information systems

  7. The Internet • Worldwide connection • 54,000,000,000 webpages • 1.9B users • TCP/IP

  8. Internet History • 1960’s - ARPA • packet switching • 1970’s - Universities • LAN • Email • UNIX • Newsgroups

  9. Internet History • 1980’s - MILnet, NSFnet • DNS • No longer only research oriented (business) • TCP/IP • reliable, efficient, robust

  10. Internet History • 1990’s until Today • WWW born • Commercialization • Advertisements • Ordinary people publish • Smartphones

  11. Reason for Success? • No central authority • Inexpensive • Capabilities are popular • Easy to use

  12. Impacts of WWW • Opening of access to information • Reduction of delay for information • Evolution of hypertext

  13. Metcalfe’s Law • The value of a network is proportional to the square of the number of its users

  14. Original Uses • Remote Login • File Transfer • Research

  15. The Basic Uses of the Net • E-mail • Discussion groups • File transfer • Long distance computing • Research • Data/Image Transfer • General Communications

  16. E-Mail - Uses • Send messages • Work • Personal • MIME capabilities

  17. E-Mail - Advantages • No busy signal • Always an answer • Reader can view at any time • Cost effective • Fast • Reliable

  18. E-Mail - Advantages • Facilitates teleworking • Promotes communication that would normally not take place due to costs

  19. E-Mail - Disadvantages • Have to be networked to use it • Not 100% reliable • Who else is reading the mail?

  20. Discussion Groups - Uses • Share ideas • Education • Spread beliefs to others • MOO - chat room with an atmosphere

  21. Discussion Groups - Disadvantages • Anonymity - Who is really there with you? • Subject matter digresses • Truth of information unconfirmed

  22. Other Uses • Banking • Shopping • Telemedicine • Education • General source of “information” • Personal Connections

  23. Advantages • No need to get in a car • Saves $ • Exposure to things not available before • Reach more people

  24. Disadvantages • Privacy • Secure transfers of information • Hackers • Can’t use everywhere • Children and censorship • Illegal activity - piracy, gambling

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