1. TV (television)

Television refers to the use of electronic technology and equipment to transmit moving images and audio signals, that is, a television receiver, and it is also an important broadcast and video communication tool. Television uses electricity to instantly transmit moving visual images. Similar to movies, TV uses the visual residual effect of human eyes to show a frame-by-frame gradual change of still images and form a visually moving image.

The transmitting end of the TV system converts each minute part of the scene into electrical signals according to brightness and chromaticity, and then transmits them in sequence. At the receiving end, the brightness and chromaticity of each tiny part are displayed according to the corresponding geometric position to reproduce the whole original image. The scanning system of TV signals in different countries is not exactly the same as the channel bandwidth. According to international radio consultative committee's suggestion, Latin letters are used to distinguish them.

2. IQ

IQ, that is, Intelligence Quotient, is the index of individual intelligence test scores and the scores of subjects of the same age, and it is the standard to measure individual intelligence. The concept of IQ was first put forward by German psychologist Steen (1914).

3. EQ (Emotional Quotient)

Emotional Quotient usually refers to emotional quotient, referred to as EQ for short, which mainly refers to people's qualities in emotion, will and frustration tolerance, including quotient (LQ) and so on. Generally speaking, there is no obvious innate difference in EQ between people, and it is more closely related to the cultivation of the day after tomorrow.

It is a concept corresponding to IQ put forward by psychologists in recent years. Defined from the simplest level, improving emotional intelligence is to change the part that can't control emotions into one that can control emotions, thus enhancing the ability to understand others and get along with others.

4. DJ (disc jockey)

DJ's skill is called disc playing, which can also be said to be a professional term responsible for disc playing. They exist in this form of playing songs, and most of them play electronic music, but strictly speaking, they can play any music style. Playing discs is generally translated as DJing, which is separated from occupation.

5. CPU (Central Processing Unit)

The CPU (Central Processing Unit) is a very large-scale integrated circuit, which is the computing core and control core of a computer. Its function is mainly to interpret computer instructions and process data in computer software.