2010年10月21日星期四

The internet (1)

The internet (1)

by wholesale replica handbags | post a comment

The 1990s have brought on a revolution in the electronic media. This revolution is the result of the computer, telephone, fax, and television. These technologies can be combined to bring many conveniences into the school, home, and office. People talk about “information superhighways” that will soon offer services such as movies on demand, wholesale replica designer handbags, shopping without leaving your living room, picture phones, conversations with friends via computer, a push-button choice of 500 TV programs, bill payments from home, and access to databases (computerized collections of information) from around the world.
The following questions and answers center on the internet, a new electronic tool for communication and research used by millions of people around the world.
What is the internet?
When two or more computers are linked together to share files and electronic mail (e-mail), wholesale designer handbags, they form a net work some individual networks consist of thousands of somputers. The internet is a network of thousands of networks, linking schools, universities, businesses, government agencies, libraries, nonprofit organizations and millions of individuals. The internet is much smaller in size than the worldwide telephone net work, but because the internet links computers instead of telephones it has vastly more power.
Is the internet the same thing as the “information superhighway” everyone is talking about?
The internet is a sort of early model for the data highway. Originally designed as a high-speed communications network for universities and military research, wholesale coach handbags, the internet has now expanded to include private and commercial clients.


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