一个操作系统必须和作为它的基础的硬件系统紧密配合。操作系统需要使用一些只有硬件才能提供的功能。为了完整的了解 Linux ，你需要了解底层硬件的基础知识。-Must be an operating system as its hardware system based on close co-operation. Operating system only need to use some of the functions of the hardware can provide. In orde