Description: Data (Data): description of the data record is called the symbol of things. The types of digital data, text, graphics, images, sounds, text and so on. Data and its semantics are inseparable. Analysis of data in modern computer systems is a broad concept. Early computer systems mainly used for scientific computing, processing of the data is an integer, real, floating point data in traditional mathematics. Modern computers can store and process a wide range of objects, these objects of the data that has become increasingly complex. Data and its semantics are inseparable. 500 This number can be the price of an item that is 500 yuan, you can also attend an academic conference that the number of 500 people, but also can be expressed
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