The Internet Week 2

Cyberspace- Definitions uPeople using the new technology to communicate with one another uPerson to person communication - that is many-to-many uThe use of computer technology

Everyday Uses in Cyberspace u1980’s u Word Processing, Document preparation u Telecommuting, Teleworking u Children’s games, Recreation

Everyday Uses of Cyberspace u1990’s until Today u Children’s school work, Education u Adult Remote Education at home u Family/Friends Communications, Correspondence u Reading News events, casual reading u Family Travel, Recreation u Family Records u Home Banking, Financial Management u Facebook, etc.

Everyday Uses of Cyberspace uIn-store and other purchases u ATM, Debit card uHome Shopping u TV, on-line services, Smartphones uFood Preparation u multimedia, TV, On-line services

Everyday Uses of Cyberspace uFuture (almost here) u Household Automated Tasks u Smart home u Smart appliances u Home robotics u Home information systems

The Internet uWorldwide connection u 54,000,000,000 webpages u 1.9B users uTCP/IP

Internet History u1960’s - ARPA u packet switching u1970’s - Universities u LAN u u UNIX u Newsgroups

Internet History u1980’s - MILnet, NSFnet u DNS u No longer only research oriented (business) uTCP/IP u reliable, efficient, robust

Internet History u1990’s until Today u WWW born u Commercialization u Advertisements u Ordinary people publish u Smartphones

Reason for Success? uNo central authority uInexpensive uCapabilities are popular uEasy to use

Impacts of WWW uOpening of access to information uReduction of delay for information uEvolution of hypertext

Metcalfe’s Law uThe value of a network is proportional to the square of the number of its users

Original Uses uRemote Login uFile Transfer uResearch

The Basic Uses of the Net u uDiscussion groups uFile transfer uLong distance computing uResearch uData/Image Transfer uGeneral Communications

- Uses uSend messages u Work u Personal u MIME capabilities

- Advantages uNo busy signal uAlways an answer uReader can view at any time uCost effective uFast uReliable

- Advantages uFacilitates teleworking uPromotes communication that would normally not take place due to costs

- Disadvantages uHave to be networked to use it uNot 100% reliable uWho else is reading the mail?

Discussion Groups - Uses uShare ideas uEducation uSpread beliefs to others uMOO - chat room with an atmosphere

Discussion Groups - Disadvantages uAnonymity - Who is really there with you? uSubject matter digresses uTruth of information unconfirmed

Other Uses uBanking uShopping uTelemedicine uEducation uGeneral source of “information” uPersonal Connections

Advantages uNo need to get in a car uSaves $ uExposure to things not available before uReach more people

Disadvantages uPrivacy uSecure transfers of information uHackers uCan’t use everywhere uChildren and censorship uIllegal activity - piracy, gambling