What is intranet and how does it relate to internet?

A good intranet is often a private laptop or computer network which uses World wide web Protocol technological innovation to securely share any component to an corporation’s information or network operating system within of which organization.The term is needed completely at odds with internet, any network between organizations, and instead comes from a network within an organization.Sometimes the word refers only towards organization’s inner website, but is often a more extensive component to the corporation’s information technology infrastructure.It may well host numerous private internet websites and constitute a significant component and focus of inside communication as well as collaboration.Any in the well acknowledged Internet protocols can be found with an intranet, for example HTTP (web services), SMTP (e-mail), in addition to FTP (file shift protocol).Internet technologies tend to be deployed to deliver modern interfaces to help legacy data systems hosting corporate facts.
An intranet can be understood to be a private analog with the Internet, or to be a private extension in the Internet limited to a business.The very first intranet internet websites and home pages began to seem in establishments in 1996-1997.But is not officially known, the expression intranet very first became common-place concerning early adopters, for example universities along with technology corporations, in 1992.dubious C discuss
Intranets have contrasted by using extranets.While intranets are likely to be restricted to help employees in the organization, extranets can also be accessed simply by customers, providers, or additional approved parties.1 Extranets extend a personal network onto the world wide web with unique provisions pertaining to authentication, authorization and accounting (AAA protocol).
Intranets may give a gateway for the Internet through a community gateway which has a firewall, protecting the intranet out of unauthorized external access.That gateway generally also makes use of user authentication, encryption connected with messages, and generally virtual confidential network (VPN) connectivity regarding off-site employees to access company information, computing sources and central communication.

http://en.wikipedia.org/wiki/Intranet

Intranet is connection to other pc in the same network\building I’m sure! Internet is usually worldwide access

they are the exact same thing.