互联网与万维网(英文教学).ppt

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互联网与万维网(英文教学)

* * * * * * * * * * * * * * * of 38 Internet and World Wide Web: Amazing Developments Doing Business Online Electronic storefronts Coordinate worldwide operations Recruit employees Entertainment Review restaurants, movies, theater, musical events and books. Interactive games Follow sports teams * of 38 Structure of the Internet * of 38 Growth of the Internet Connections are cheap varied ….. More resources are being connected No official control on the Internet The WWW protocals made the Internet more user friendly Standards are critical for the success of new innovations Technology advancement improvement * of 38 Growth of the Internet Number of hosts connected to Internet includes only computers directly connected to the Internet. Internet traffic now carries more files that contain graphics, sound, and video, so Internet files have become larger. * of 38 New Structure for the Internet The Internet has become one of the most amazing technological and social accomplishments of the century. Computers linked to this interconnected network are located in almost every country of the world. Billions of dollars change hands every year over the Internet. * of 38 Who controls the Internet? No one??? Internet Society - / - a non-profit, non-governmental, international, professional membership organization 150 organization and 16,000 individual members in over 182 countries deals with issues that confront the future of the Internet * of 38 World Wide Web World Wide Web: a way of thinking about information storage and retrieval. Web: software that runs on some of the computers connected to each other through the Internet. Two important innovations played key roles: hypertext graphical user interfaces (GUIs) * of 38 Hypertext and Graphical User Interfaces Come to the Internet Hypertext Markup Language (HTML): a language that includes a set of codes (or tags) attached to text. Hypertext Server: a computer that stores files written in HTML; other computers connect t

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