What is the difference between Internet, intranet, and extranet?

 

Internet, Intranet and Extranet are the networks of computer.

 Internet: The Internet is a vast network that connects computers all over the world. Through the Internet, people can share information and communicate from anywhere with an Internet connection.

Intranet: An intranet is a private network, operated by a large company or other organization, which uses internet technologies, but is insulated from the global internet.

Intranet is the computer network for groups containing small members and can be accessed by these members only. These networks are used in business fields as one member has to share files and other docs to other members within a group. Or it is also used for networking within building or home.

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

Typical intranet for a business organization consists of many interlinked local area networks (LAN) and use any Wide Area Network (WAN) technology for network connectivity. The main purpose of an intranet is to share company information and computing resources among employees.

Intranet is a private Internetwork, which is usually created and maintained by a private organization. The content available inside Intranet are intended only for the members of that organization (usually employees of a company).

Extranet: An extranet is an intranet that is accessible to some people from outside the company, or possibly shared by more than one organization.

Extranet is computer network used by people of particular network with a login I'd and password.

These are sometimes used by two or more departments to communicate with each other.

Extranet is required for normal day-to-day business activities. For example, placing purchase order to registered vendors, billing & invoices, payments related activities; joint venture related activities, product brochures for partners, discounted price lists for partners etc.

Extranet: An extranet can be viewed as part of a company's intranet that is extended to users outside the company like suppliers, vendors, partners, customers, or other business associates.