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It can provide an almost immediate access to hardware resources,with no upfront capital investments for users, leading to a fastertime to market in many businesses. Treating IT as an operationalexpense (in industry-speak, employing an ‘Op-ex’ as opposed to a‘Cap-ex’ model) also helps in dramatically reducing the upfrontcosts in corporate computing. For example, many of the promisingnew Internet startups like 37 Signals, Jungle Disk, Gigavox,SmugMug and others were realized with investments in informationtechnology that are orders of magnitude lesser than thatrequired just a few years ago. The cloud becomes an adaptiveinfrastructure that can be shared by different end users, each ofwhom might use it in very different ways. The users are completelyseparated from each other, and the flexibility of the infrastructureallows for computing loads to be balanced on the fly as more usersjoin the system (the process of setting up the infrastructure hasbecome so standardized that adding computing capacity hasbecome almost as simple as adding building blocks to an existinggrid). The beauty of the arrangement is that as the number of usersgoes up, the demand load on the system gets more balanced in astochastic sense, even as its economies of scale expand.
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