Data-Center -- A facility holding a heck of a lot of computer servers. You may use computers from one or more of Amazon's DC's or Microsoft's or Google's. Or you may pay a company who pays one of those companies. Your humble first product should not involve blueprints for a new DC of your own. For DR purposes, you may have a 'primary' DC, in one location, and a 'secondary' DC in other. See also, DR.
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