Data expansion:
In a broad sense, media refers to any substance that can make people, people and things, things and things contact or have a relationship. In the sense of communication (narrow sense), advertising media refers to the material tools that use media to store and disseminate information. Marshall mcluhan, a Canadian literary critic, disseminator and master of the School of Media and Environmental Communication, said, "Media is information". At the same time, "media" has also become a position, such as media specialist, media planning, commercial media and so on.
Tracing back to history:
"Media, as the carrier of knowledge", in the sense of communication, refers to the material tool that uses media to store and disseminate information. Shi Lamu, a famous American communication scientist, believes that "media is a tool to expand and extend information transmission in the process of communication", which has existed since ancient times.
In the long ancient times, human ancestors had some obstacles in communication, production, life, and even reproduction and survival. "Knoting" is one of the means for ancient humans to get rid of the limitation of time and space to record facts and spread. It happened in the long years after the appearance of language and before the appearance of words.
With the emergence of characters and the alternation of feudal dynasties, the media that played the role of information bearing and recording began to change constantly. To some extent, it is a status symbol of feudal kingship and social productive forces, and also a reflection of science and technology. During the feudal dynasty, the media experienced six transitional periods: Oracle Bone Inscriptions, Bronze, Bamboo Slips, Silk, Hemp Paper and Eastern Han Dynasty.
The word "media" in English is the plural form of "media" in English, which appeared at the end of 19 and the beginning of the 20th century, and its meaning refers to the media or tools that indicate the relationship between things. This kind of generalized "media" is not only heard from time to time in human daily life, but also common in the dissemination of works.
According to McLuhan's extension theory (1964), media is information, and all media can have some connection with human body. For example, a stone axe is an extension of hands, wheels are an extension of feet, books are an extension of eyes, radios are an extension of ears, and clothes are an extension of skin. The media is everywhere.