The abbreviation of "auxiliary".

AUX aux group trademark

Auxiliary OpenGL programming auxiliary library

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Universal serial bus (USB)

USB is the abbreviation of Universal Serial BUS in English and serial line in Chinese. It is an external bus standard that regulates the connection and communication between computers and external devices. It is an interface technology applied in PC field. USB interface supports plug-and-play and hot-plug functions of devices. USB was put forward by Intel, Compaq, IBM and Microsoft at the end of 1994.