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Datarefers to the symbols that represent people, events, things, and ideas. Data can be a name, a number, the colors in a photograph, or the notes in musical composition.In this context, data represents the raw facts and figures which can be used in such a manner in order to capture the useful information out of it. Data is collected using techniques such as measurement, observation, query, or analysis, and is typically represented as numbers or characters which may be further processed.

Data Representation: Data representation is a technique for analysing numerical data. The relationship between facts, ideas, information, and concepts is depicted in a diagram via data representation. It is a fundamental learning strategy that is simple and easy to understand. It is always determined by the data type in a specific domain.

Since the invention of computers, people have used the term data to refer to computer information, and this information was either transmitted or stored. But that is not the only data definition; there exist other types of data as well.