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File Sharing and Topic SearchingOne of the original Internet goals was global information sharing. The teacher mentioned in the previous article located another educator on the Internet who was willing to share already developed course materials. Within minutes the files were transferred, despite a 2,000-mile distance. What help is available when one does not know where a subject may be located within the Internet? Just as we locate a phone number by using a telephone directory, a user may find locations of interest on the Internet by first gaining access to what are known as search sites. The user supplies a word or a phrase, the site then replies with a list of Internet locations where information can be found. Generally, the search is free and takes only a few seconds. The farmer mentioned earlier had heard of a new technique called precision farming, which uses computers and satellite maps. By entering that phrase at a search site, he found the names of farmers who were using it as well as detailed information about the method. The World Wide Web The part of the Internet called World Wide Web (or Web) allows authors to use an old-fashioned idea that of footnotes in a new way. When an author of a magazine article or a book inserts a footnote symbol, we scan the bottom of the page and are possibly directed to another page or book. Authors of Internet computer documents can do essentially the same thing using a technique that will underline or highlight a word, a phrase, or an image in their document. The highlighted word or image is a clue to the reader that an associated Internet resource, often another document, exists. This Internet document can be fetched and displayed immediately for the reader. The document may even be on a different computer and located in another country. David Peal, author of Access the Internet, notes that this technique «links you to actual documents, not just references to them» The Web also supports the storage and retrieval, or playing, of photographs, graphics, animations, videos, and sounds. Loma, the housewife mentioned at the outset of the previous artic le, obtained and played a short colour movie of the current theories regarding the universe. She heard the narration through her computer's audio system. Surfing the Net By using a Web browser, a person can easily and quickly view information and colourful graphics that may be stored on computers in many different countries. Using a Web browser can be similar in some ways to actual travel, only easier. One can visit the Web exhibits of the Dead Sea Scrolls or the Holocaust Memorial Museum. This ability to move nimbly back and forth from one Internet Web site to another is commonly called surfing the Net. Businesses and other organizations have become interested in the Web as a means to advertise their products or services as well as to offer other kinds of information. They create a Web page, a sort of electronic storefront window. Once an organization's Web page address is known, potential customers can use a browser to go «shopping», or information browsing. As in any marketplace, however, not all products, services, or information provided on the Internet are wholesome. Researchers are trying to make the Internet secure enough for confidential and safeguarded transactions. Another worldwide Internet-dubbed by some Internet II – is being developed because of the increased traffic that this commercial activity has generated. What Is «Chat»? Another common service of the Internet is the Internet Relay Chat, or Chat. Chat allows a group of people, using aliases, to send messages to one another immediately. While used by a variety of age groups, it is especially popular among young people. Once connected, the user is brought into contact with a large number of other users from all around the world. So-called chat rooms, or chat channels, are created that feature a particular theme, such as science fiction, movies, sports, or romance. All the messages typed within a chat room appear almost simultaneously on the computer screens of all participants for that chat room. A chat room is much like a party of people mingling and talking at the same general time, except that all are typing short messages instead. Chat rooms are usually active 24 hours a day. Of course, Christians realize that the Bible principles about association, such as the one found at 1 Corinthians 15:33, apply to participation in chat groups just as they apply to all aspects of life. Поиск по сайту: |
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