With the advantages of supporting PnP (Plug and Play) and hot plug, as well as highly speeded, easily extended and bus power supply, the Universal Serial Bus is becoming the main interface between PC and peripheral communication.

• USB总线由于支持即插即用和热拔插,以及具有速度快、易于扩展、总线供电等优点,目前已成为PC机与外部通信的主流接口。