Difficulty of system Extending and transplant are found by means of PCI (Peripheral Component Interface) bus motion controller or PC (Programmable controller).

系统的扩展和移植难度发现的PCI(外设组件接口)总线运动控制器或PC(可编程控制器)的手段。

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Traditionally, computers have a port to transfer video of their screen, and separate ports, such as USB (Universal Serial Bus), FireWire, and PCI Express (Peripheral Component Interconnect Express), among others that are less well known.

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