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USB为计算机外围设备输入输出提供了新的接口标准,它使得设备具有了热插拔、自动配置的能力,并标准化了设备连接。USB的级联星型拓扑结构大大扩充了外设数量,使用外设更加便捷、快速。
USB provides a new interface standard for the input and output of computer peripherals, giving the device the ability to hot-swap and auto-configure and standardize device connectivity. USB cascading star topology has greatly expanded the number of peripherals, the use of peripherals more convenient and fast.