What are the broad and narrow definitions of information ~ ~ ~

Generalized information refers to an expression and statement of the existence mode, motion state and interrelated characteristics of various things.

In a narrow sense, information refers to information with new content or new knowledge, that is, things that are not known to the recipient in advance.

Information is the reflection of the movement state and change of various things in the objective world, the representation of the interrelation and interaction between objective things, and the representation of the movement state and change essence of objective things.

Physically speaking, information and matter are two different concepts. Information is not matter. Although the transmission of information requires energy, information itself has no energy. The most striking feature of information is that it cannot exist independently, and the existence of information must depend on the carrier.

Extended data:

Although the information is uncertain, there are ways to quantify it. According to the concept of information, people can conclude that information has the following characteristics:

1, the greater the probability P(x) of message appearance, the smaller the amount of information; 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, everyone in the world knows what happened, so the amount of information is 0.

3. When a message consists of several independent small messages, the information contained in this message should be equal to the sum of the information contained in each small message.