Difference between Internet, Intranet and Extranet
1. Internet :
The network formed by the co-operative interconnection of millions of computers, linked together is called Internet. Internet comprises of :
- People : People use and develop the network.
- Resources : A collection of resources that can be reached from those networks.
- A setup for collaboration : It includes the member of the research and educational committees worldwide.
2. Intranet :
It is an internal private network built within an organization using Internet and World Wide Web standards and products that allows employees of an organization to gain access to corporate information.
3. Extranet :
It is the type of network that allows users from outside to access the Intranet of an organization.
Difference between Internet, Intranet and Extranet :
Point of difference | Internet | Intranet | Extranet |
---|---|---|---|
Accessibility of network | Public | Private | Private |
Availability | Global system. | Specific to an organization. | To share information with suppliers and vendors it makes the use of public network. |
Coverage | All over the world. | Restricted area upto an organization. | Restricted area upto an organization and some of its stakeholders or so. |
Accessibility of content | It is accessible to everyone connected. | It is accessible only to the members of organization. | Accessible only to the members of organization and external members with logins. |
No. of computers connected | It is largest in number of connected devices. | The minimal number of devices are connected. | The connected devices are more comparable with Intranet. |
Owner | No one. | Single organization. | Single/ Multiple organization. |
Purpose of the network | It’s purpose is to share information throughout the world. | It’s purpose is to share information throughout the organization. | It’s purpose is to share information between members and external, members. |
Security | It is dependent on the user of the device connected to network. | It is enforced via firewall. | It is enforced via firewall that separates internet and extranet. |
Users | General public. | Employees of the organization. | Employees of the organization which are connected. |
Policies behind setup | There is no hard and fast rule for policies. | Policies of the organization are imposed. | Policies of the organization are imposed. |
Maintenance | It is maintained by ISP. | It is maintained by CIO. HR or communication department of an organization. | It is maintained by CIO. HR or communication department of an organization. |
Economical | It is more economical to use. | It is less economical. | It is also less economical. |
Relation | It is the network of networks. | It is derived from Internet. | It is derived from Intranet. |
Example | What we are normally using is internet. | WIPRO using internal network for its business operations. | DELL and Intel using network for its business operations. |