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What is the Internet?

Many online sources offer varying definitions, but mostly everyone agrees that the Internet is a worldwide, publicly accessible network of interconnected computer networks that allows sharing or networking of files and information at remote sites from other academic institutions, research institutes, private companies, government agencies and individuals using the Transmission Control Protocol or Internet Protocol, and that communicate through phone and satellite. It is a three level hierarchy composed of backbone networks, mid-level networks, and stub networks. These include commercial, university and other research networks.

Purpose of the Internet

In the 1950's, computers were still very rare, and computer science was in it's infancy. Most technological advancements during this period, such as cryptography, radar and battlefield communication, were due to military operations during World War II , and government activities are at the base of the development of the Internet. Three decades ago, the RAND Corporation struggled with possible ways for US authorities to successfully communicate after a nuclear war. Their chief concern was that any central network control center might be destroyed by an enemy missile. In a plan made public in 1964, the RAND Corporation proposed that the new network have no central authority.