247Ebook Handout: Internet, Intranet, and Extranet

Intranet is shared content accessed by members within a single organization.

Extranet is shared content accessed by groups through cross-enterprise boundaries.

Internet is global communication accessed through the Web

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Not necessarily definitive definitions, but Wikipedia defines them as follows.

Intranet: An intranet is a private computer network that uses Internet Protocol technologies to securely share any part of an organization's information or operational systems within that organization.

Extranet: An extranet is a private network that uses Internet protocols, network connectivity. An extranet can be viewed as part of a company's intranet that is extended to users outside the company, usually via the Internet.

Internet: The Internet is a global system of interconnected computer networks that use the standard Internet Protocol Suite (TCP/IP) to serve billions of users worldwide.

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