CIS 1000 Chapter 13: Chapter 13-How the internet works.doc
16 Apr 2012
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U. s. government funded it, but no one really owns it. Nonprofit organizations and user groups each with a specialized purpose. The national science foundation (nsf), the primary source of funds is tax dollars. Internet backbone is the main paths of the internet, along which data travels the fastest. Ex, verizon business, at&t, sprint, and qwest. A t line (initially) carried data over twisted pair lines. Now-a-days high-speed is connected to a fiber-optic line, designated as an optical carrier (oc) line. Once known as network access points (naps), which were designed to move large amounts of data quickly between networks. Now, data-exchange method is known as an internet exchange point (ixp), which is made up of one or more network switches. Switches are devices that send data on a specific route through a network. Point of presence (pop), which is a bank of modems, servers, routers, and switches through which many users can connect to an isp simultaneously.
