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Write a report explaining what the Internet is and the World Wide Web.

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Introduction

Write a report explaining what the Internet is and the World Wide Web. The Internet is a gigantic collection of millions of computers, all linked together on a computer network. The network allows all of the computers to communicate with one another. Vinton Cerf created the Internet technology in early 1973 as part of a project headed by Robert Kahn and conducted by the Advanced Research Projects Agency, part of the United States Department of Defence. By early 2000, access was available in over 200 countries and encompassed around 100 million users. The development of the World Wide Web is fuelling the rapid introduction of new business tools and activities that may by then have led to annual business transactions on the Internet worth hundreds of billions of pounds. The potential of web-based commerce is immense. Put simply the Internet is a network of millions of computers all connected together. Information is put on these computers by individuals, companies and organisations about every possible subject. By connecting to the Internet you get access to this huge amount of information. The main areas of the Internet that are used in schools are the World Wide Web, e-mail, and discussion boards. ...read more.

Middle

Both Netscape and Microsoft include an e-mail utility with their Web browsers. FTP (File Transfer Protocol) is a set of conventions allowing easy transfer of files between host computers. This remains the biggest use of the Internet, especially for software distribution, and many public distribution sites now exist. Internet Relay Chat (IRC) is a system for chatting that involves a set of rules and conventions and client/server software. On the Web, certain sites such as Talk City or IRC networks such as the Undernet provide servers and help you download an IRC client to your PC. You can start a chat group (called a channel) or join an existing one. There is a protocol for discovering existing chat groups and their members. Depending on the type of network, nicknames can be reserved (registered) or just used during the session. Some channels encourage you to register a nickname that you always use and even offer space for a personal profile, picture, and personal home page link. In order to be able to view Web pages you need a piece of software called a browser. The most popular browsers are Microsoft Internet Explorer and Netscape Navigator. ...read more.

Conclusion

Analogue signals vary continuously; an example of an analogue signal is a sound wave. Modems are most frequently used to enable computers to communicate with each other across telephone lines. To convert a digital signal to an analogue one, the modem generates a carrier wave and modulates it according to the digital signal. There are many different kinds of modulation, depending on the application and the speed of operation for which the modem is designed. Some modems have become specialized in terms of function. For instance, one of the cards available for a PC is a facsimile transmission (fax) modem that allows the PC to talk directly to fax machines and to send and receive fax messages. High-speed modems have been developed that work at speeds of 2 megabits per second. These are used as components in leading-edge communications services and are not as yet commercially available. Safety factors and the Web Before letting children loose on the Web you should consider the following * The need for the school to develop an Internet policy * The need for parents to sign a consent form as part of acceptable behaviour policy * Censorship and obligations of unsuitable material * Supervision of pupils as they use the Internet * Never publish the name, address or e-mail of a child on the Web and don't identify a single child ...read more.

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