Utility Computing is a business model for computing in which resources (CPU power, storage space, etc.) are made available to the user on an as-needed basis. The goal of the utility computing model is to maximize the efficient use of computing resources and minimize user costs. Users are able to dial up or dial down usage in real time, to meet the varying demands of business.
It is basically defined as the suminister of computing resources, for example the processing and storing. It is similar to the public traditional services such as electricity, water, natural gas or even phones.
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