The greater the value, the faster the speed. Big data is a database, while small data is partial and incomparable.

Data is the result of facts or observations, the logical induction of objective things, and the original materials used to express objective things. Data can be continuous values, such as sound and images, which are called analog data; It can also be discrete values, such as symbols and characters, called digital data. In a computer system, data are represented in the form of binary information units 0 and 1.