What is an Internet, Intranet, and Extra-net? Mention some uses of Internet.

internet-Intranet-Extranet
internet-Intranet-Extranet-

Question: What is Internet? Mention some uses of Internet.

Internet:

Internet is a network of networks. When two or more Metropolitan Area Networks (MANs) are connected then a bigger network is produced which is called a Wide Area Network (WAN) and that is the Internet. The other names of Internet are information superhighway or cyber space or simply net.

Some important uses of Internet are:

(i)   E-mail

(ii)  Chatting (Text based Messaging)

(iii) VOIP (Voice Over Internet Protocol`)

(iv) Video conferencing

(v)  Browsing information

and so on.

internet-Intranet-Extranet-Free4arab
internet-Intranet-Extranet-

Intranet:

An intranet is a private network of an organization. It is the smallest network than Internet and extranet. It is highly secured network and only the employees of the organization can access here using valid password. Like Internet, an intranet can also be browsed using a browser but only the internal data of the organization.

Extra-net:

An extranet is a private network of two or more organizations. It is smaller network than Internet but larger than intranet. When the intranets of two or more organizations are connected to each other to share resources and ideas then a bigger network is produced which is still private and called an extranet. It is a  secured network and only the employees of the organizations can access here using valid password. Like Internet and intranet, an extranet can also be browsed using a browser but only the internal data of the organizations.

 

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