The scope of the concept of connectors and connector

Connector, that is CONNECTOR. Also called a plug-in connector. It is a component that electronic engineering technicians often touch. Also known as connectors, plugs and sockets in China. Generally refers to electrical connectors. That is, a device that connects two active devices, carrying current or a signal.
The connector is a positioning joint for connecting electronic circuits. It is composed of two parts, namely the plug-in and the connector, which can be completely separated under normal conditions. Change, to achieve the purpose of conversion of the circuit it is connected to, and the essential difference is that the connector has only two states of insertion and removal, the switch can realize the conversion of the circuit on its body, and the connector cannot realize the conversion on the body. There is a fixed correspondence between the contact pairs of the connector, so the connector can also be called a connector.