Introduction to Internet, Lecture notes of Internet and Information Access

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Intranet: Intranet is defined as private network of computers w its own server and firewall. in an org: ion with + Intranct is system in which multiple PCs are networked to be connected to each other. PCs in intranet are not available to the world outside of the intranet. + Usually each company or organization has their own Intranet network and members/employees of that company can access the computers in their intranet. + Every computer in internet is identified by a unique IP address. » Each computer in Intranet is also identified by an IP Address, which is unique among the computers in that Intranct. Internet ys. Intranet: Apart from similarities there are some differences between the two. Following are the differences between Internet and Intranet: Intranet Internet Localized Network. ; ~~ Worldwide Network ~ Have access to Internet. “More Expensive : Less Expensive : “More Safe Less Safe : |MoreReliability ==—=—SOS~S~S _ Less Reliability : Extranet: Extranet refers to network within an organization, using internet to connect to the outsiders in controlled manner. It helps to connect businesses with their customers and suppliers and therefore allows working in a collaborative manner.