Internet is a computer based worldwide information network. It can be assumed as an example of Wide Area Network. The internet is composed of a large number of smaller interconnected networks. These networks may link tens, hundreds, or thousands of computers, enabling them to share information with each other and to share various resources, such as powerful supercomputers and database of information. The internet has made it possible for people all over the world to effectively and inexpensively communicate with each other. Unlike traditional broadcasting media, such as radio and television, the internet is a decentralized system. Each connected individual can sell products with a minimum overhead cost. The internet has brought new opportunity for business to offer goods and services online and it has shown dramatic impact on higher education as more universities offer internet based courses.
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