A data grid is a computing system designed to handle large amounts of information. Picture a spreadsheet with rows and columns and a computer that can simultaneously handle all calculations.
A data grid is a graphical user interface, such as that found in spreadsheet software, which provides a tabular view of data for easy reading and editing.
A data Grid is a grid computing system that primarily deals with large data sets. They are using for managing distributed data and closely related to computational grid computing systems.