The Internet, sometimes called simply "the Net".

  • It is a worldwide system of computer networks - a network of networks in which users at any one computer can get information from any other computer 

  • A means of connecting a computer to any other computer anywhere in the world via dedicated routers and servers. When two computers are connected over the Internet.

  • They can send and receive all kinds of information such as text, graphics, voice, video, and computer programs

  • It is a worldwide system which has the following characteristics:

  • Internet is a world-wide of interconnected computer networks.

  • Every computer in internet is identified by a unique IP address.

  • IP Address is a unique set of numbers (such as which identifies a computer’s location.

  • Internet is accessible to every user all over the world.


  • An intranet is a private network that is contained within an enterprise.

  • It may consist of many interlinked local area networks.

  • It also use leased lines in the wide area network. 

  • It is system in which multiple PCs are connected to each other.

  • PCs in intranet are not available to the world outside the intranet.

  • Usually each enterprise has their own Intranet network and members of that enterprise can only access the computers.

  • Each computer is also identified by an IP Address which is unique among the computers in that Intranet.

  • An intranet uses TCP/IP, HTTP, and other Internet protocols and in general looks like a private version of the Internet.

Similarities between Internet and Intranet:

  • In the current times, intranet can be considered more of a business tool which keeps an organization connected in a structured manner. 

  • It is, however, to be always remembered that intranet is a part of internet. Thereby, intranet does share some very basic features with the Internet.

  • Some of them are listed as under:

  • Intranet uses the internet protocols such as TCP/IP and FTP.

  • Though the access is limited, intranet can work on any of the web browsers.

  • Some organizations do have a customized web browsing environment as per their requirement.

  • In Intranet, own instant messengers can be used as similar to yahoo messenger over the internet.

  • Security features like firewall and encryption-decryption policies are applied using same or similar features that internet has.

  • A number of organizations have different encryption techniques so that any undesirable breach of data is not possible because of patterned studies.

Difference between Internet and Intranet:


  • The Internet is available to the public (everyone).

  • Internet itself contains a large number of intranets.

  • The number of users who use internet is Unlimited.

  • Internet contains different source of information and is available for all.

  • The Visitors traffic is unlimited.


  • An Intranet is a private network only available to select users.

  • It is a network of computers designed for a specific group of users..

  • An Intranet provides much high speed than the Internet. 

  • Intranet can be accessed from Internet but with restrictions.

  • The number of users is limited.

  • Intranet-based information is more secure than that of the Internet.

  • Intranet contains only specific group information.

  • The traffic allowed is also limited

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