认识各类型主板及主板上各种类型功能元件，了解每部分的工作原理和相互间关系以及主板上相关硬件的设置方法，为微机组装实践环节中主板的安装打下坚实的理论基础。-Understanding of various types of motherboards on the Main Board and the various types of functional components, each part to understand the working principle and the relati