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。本章对于现代PC的硬件进行了。-an operating system must and as its hardware system based on the close tie. Operating system only need to use some of the hardware in order to provide the func