详细的介绍了COM技术，是学习COM基本技术和思想很好的资料。-Detailed introduction of the COM technology, are studying the basic COM technology and a very good idea of the information.

这里也是一些学习维修主板需要掌握的知识，有错误的地方请联系本人，fuqiang1218·sina.com-Here is some of the main board needs to learn maintenance knowledge, there are the wrong place please contact me, fuqiang1218 sina.com