Where are the terminals usually used? The terminal is the terminal used for connection. It can be used anywhere. Nowadays, human life, work and entertainment are totally dependent on electricity. Without electricity, work, life and entertainment will be interrupted and stagnated. Mobile computer cameras, as well as many other electronic and digital products and household appliances. The common feature of these products is the use of electricity, the most important thing is that they are equipped with a variety of wires, white and black, long, short, thick and thin. Power lines, data lines, and various wires are connected to the electronic products we need to use, so that they can work properly and achieve our desired services and functions perfectly. These all kinds of wires, they all have a port, they are the use of these ports to connect with a variety of devices. For example, the cable has two crystal heads, one connected to the switch and the other to our computer. Crystal head is a terminal. The USB interface of the data line is also a kind of terminal. One end of the charger is connected to the power supply, and the other end is connected to the computer, mobile phone and MP3 MP4. These ports are also high current terminals. There are tens of thousands of types of terminals. There are more than 3000 types of terminals for a well-known brand. In addition to computers, digital products, household appliances and so on, all plugs or ports connected to the power supply can be called terminals. The application field of terminal is amazing. Terminals have reached the point where they can be seen everywhere in daily life. So the terminal market is very big.