What is jack plug? How to use in English

The term "jack plug" is commonly used to refer to a type of electrical connector used to plug in and unplug audio, video, and other electronic devices. The origin of the word "jack plug" can be traced back to the early 1900s when it was primarily used to describe a component in the telephone system. In the telephone system, a jack is a female connector, and a plug is the corresponding male connector. The name "jack" came from the phrase "jackscrew," which referred to the screw used to fasten the telephone handset to the wall. The screw resembled a carpenter's jackscrew, so it was called a jackscrew, which later became shortened to simply "jack." The term "plug" refers to the male component that fits into the jack. It was named so because it resembled the wooden plugs used to close openings in wine barrels. The term "plug" came into use for these components after they became standardized in the telephone system. The usage of the term "jack plug" eventually spread to other electrical connectors, including those used for audio and video connectivity. Today, the term "jack plug" is widely used to refer to any type of electrical connector that is designed to be plugged into a corresponding jack.