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Liferay Portal 6 Enterprise Intranets by Jonas X. Yuan

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Cloud Computing

Cloud Computing refers to both the applications delivered as services over the Internet (SaaS Software as a Service) and the hardware and systems software in the virtual data centre that provide those services http://en.wikipedia.org/wiki/Cloud_computing.

There are different types of public cloud computing service providers. Amazon EC2 is the most widely used web service that allows subscribers to run applications with resizable compute capacity in an Amazon cloud computing environment. An EC2 instance can serve as a practically unlimited set of virtual machines but looks much like a physical hardware with a running operation systems such as Windows, Linux, or Unix. Generally speaking, an EC2 subscriber has control over nearly ...

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