May I ask how to understand the radio and television?

Radio television is broadcasting classified according to the transmission signal

1, the communication characteristics of radio and television

1) a wide range of objects, not limited by literacy, suitable for all kinds of people.

2) Strong effectiveness, short production cycle, and even live broadcasting.

3) Rich and intuitive, with a variety of subjects and genres. Intuitively stimulate people's audio-visual senses.

4) Acceptance of casual, program and channel selection at one's will.

5) Sequential acceptance, you must listen to the program in accordance with the order of broadcasting.

6) Fleeting, cannot be retained unless recorded.

2, the means of communication of radio and television

1) the elements of radio: language, music, sound

2) the elements of television: the picture (moving images, static pictures, text);

sound (language, music, sound, animation)

3, radio and television media of the social functions

1) dissemination of news --The basic function of mass media.

2) Social education - dissemination of knowledge and social norms.

3) Cultural entertainment - in addition to being compatible with almost all forms of art, it has its own independent form and participatory characteristics.

4) Provision of services - life services, information services (advertising).

4. The status and influence of radio and television communication

1) Radio is "a newspaper without paper, without distance" (Lenin). It arose at the end of World War I and was widely used in World War II. The best media in peacetime.

2) Television, "the first media of the masses", was created in 20C20S and flourished in 50S, has a more attention-grabbing picture image than newspapers and radio, and has a strong influence on the social politics, economy, culture, and individual's viewpoints and attitudes, values, and aesthetics.