The Internet

The Internet - The Internet Abbe Forman Introduction Many...

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The Internet Abbe Forman Introduction Many people use the terms Internet and Web interchangeably but in fact, they are very different as you will see in this section. The Internet is defined as the world’s largest network and it links together millions of businesses, agencies, individuals, and e-commerce. The Web is the worldwide collection of electronic documents. The Web lives on the Internet and the Internet makes the Web possible. The Internet Internet History The Internet has its roots in ARPANET which was developed by the Pentagon’s Advanced Research Projects Agency (ARPA) in 1969. It connected computers at four locations: University of California at Los Angeles (UCLA), Stanford Research Institute, University of Utah, and University of California at Santa Barbara. The initial goal was to allow scientist to communicate via this new network, with the hope that if one area of the network failed, the remainder of the network would continue to work. In 1986, the National Science Foundation (NSF) connected its five supercomputers (known as NSFnet) to the ARPANET giving rise to the birth of the Internet. The Internet has grown at an amazing speed from the initial four nodes (a node is any device connected to the Internet), to over 1 billion nodes connected today. How the Internet functions The Internet Backbone is made up of network devices that provide the routing for traffic on the Internet. The devices are maintained by a series of Network Service Providers (NSPs) such as AT&T, Sprint, and Verizon. The NSPs provide Internet connections to the Internet Service Providers (ISPs) such as Comcast, and Earthlink. This link is to a map of the Internet Backbone in North America: It is important to understand that no individual, corporation, or government owns the Internet. Instead, there are organizations that set the standards that maintain the Internet such as the World
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This note was uploaded on 03/29/2011 for the course CIS 0835 taught by Professor Forman during the Spring '11 term at Temple.

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The Internet - The Internet Abbe Forman Introduction Many...

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