INTERNET V/S INTRANET
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 220.127.116.11) 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 uses 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.