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Cloud Computing

Cloud computing is defined as Internet-based computing, whereby shared resources, software, and information are provided to computers and other devices on demand.

Cloud computing is a paradigm shift following the move from mainframe to client–server computing in the early 1980s.  Details are abstracted from the users, who no longer have need for expertise in, or control over, the technology or infrastructure "in the cloud" that supports them.  Cloud computing describes a new delivery model for IT services based on the Internet and it typically involves over-the-Internet provision of dynamically scalable and often virtualized resources.