What is the difference between information and data?

The differences between information and data are as follows:

First of all, the concept is different.

1. Data is the expression and carrier of information, which can be symbols, characters, numbers, sounds, images, videos, etc.

2. Information is the connotation of data. Information is loaded on the data and meaningful explanations are given to the data.

Second, the characteristics are different.

1, information

(1) The greater the probability P(x) of message x, the smaller the information content; Conversely, the smaller the probability of occurrence, the greater the amount of information. As you can see, the amount of information (which we refer to as I) is inversely proportional to the probability of message occurrence.

(2) When the probability is 1, the information content of 100% event is 0.

2. Data

Data can be continuous values, such as sound and images, which are called analog data. It can also be discrete, such as symbols and characters, called digital data.

Third, the classification is different.

1, data

Divide into by nature

(1) positioning and other coordinate data.

(2) Qualitative, such as data indicating the attributes of things (residential areas, rivers, roads, etc. ).

(3) Quantitative data reflecting the quantitative characteristics of things, such as geometric quantities such as length, area and volume or physical quantities such as weight and speed.

(4) Timing data reflecting the time characteristics of things, such as year, month, day, hour, minute, second, etc.

2. Information

(1) The representation, dissemination and storage of information must be attached to some kind of carrier, that is, something that carries information.

(2) Information can be processed. Information can also be converted from one form to another.

(3) Information can be stored, retained and disseminated without the content it reflects.

(4) Information can be transmitted and enjoyed. Information can be reused as lossless as matter and energy.

(5) Information has timeliness.

Extended data:

Data and information are interrelated. Data is a record reflecting the attributes of objective things and a concrete form of information. After data is processed, it becomes information; Information needs to be digitized and converted into data before storage and transmission.

Baidu Encyclopedia-Data and Information