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Internet is a network of computer networks which operates world-wide using a common set of communications protocols.That is network providing access to millions of resources worldwide. University Libraries provide access to many periodical indexes through the Internet. Internet access is available on all floors of the Libraries. The Internet began in 1962 as a resilient computer network for the US military and over time has grown into a global communication tool of more than 12,000 computer networks that share a common addressing scheme.It is a three level hierarchy composed of backbone networks (eg ARPAnet, NSFNet, MILNET), mid-level networks, and stub networks. These include commercial (.com or .co), university (.ac or .edu) and other research networks (.org, .net) and military (.mil) networks and span many different physical networks around the world with various protocols including the Internet Protocol.Common uses of the Internet are:E-mail, World Wide Web,Remote access,Collaboration,File sharing,Streaming media,Voice telephony (VoIP),Censorship...