Internet+vs+Intranet

Introduction
Most people are familiar with the term the Internet, but what does it really mean? And what is an Intranet?

The Internet
See the IT crowd's definition - [|What is the Internet]

OK, maybe that's not it...try this:

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Some Internet Statistics
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What is an intranet?
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Task
In your own words write a short paragraph to explain the difference between the Internet and an intranet