What is essentially a very large,corporate-wide database,culled from a number of separate systems,such as billing,accounting,order fulfillment,distribution,customer service,and marketing and sales,already in place within an organization?

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The description provided fits that of a data warehouse, which is essentially a central repository of data collected from multiple sources within an organization. This data can then be used for analysis and decision-making purposes. The other options, decision support system and customer information system, are more focused on specific functions, and a data cluster is not a recognized term in the field of information technology.

What Is Essentially a Very Large,corporate-Wide Database,culled from a Number