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Cloud computing

Cloud computing logical diagram
Cloud computing is [Internet] -based [computing] , whereby shared resources, software and information are provided to computers and other devices on-demand, like a public utility.

It is a [paradigm shift] following the shift from [mainframe] to [client-server] that preceded it in the early '80s. Details are abstracted from the users who no longer have need of, expertise in, or control over the technology infrastructure "in the cloud" that supports them. Cloud computing describes a new supplement, consumption and delivery model for IT services based on the Internet, and it typically involves the provision of dynamically [scalable] and often [virtualized] resources [as a service] over the [Internet] . [Gartner Says Cloud Computing Will Be As Influential As E-business] It is a byproduct and consequence of the ease-of-access to remote [computing] sites provided by the Internet.

The term cloud is used as a [metaphor] for the Internet, based on the cloud drawing used in the past to represent the telephone network, [http://www.sellsbrothers.com/writin g/intro2tapi/default.aspx?content=p stn.htm] and later to depict the Internet in [computer network diagram] s as an [abstraction] of the underlying infrastructure it represents. [The Internet Cloud] Typical cloud computing providers deliver common [business application] s online which are accessed from another web service or software like a [web browser] , while the [software] and [data] are stored on [servers] .

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