主板上有哪些硬件。这些硬件的接口标准是什么？

1.芯片部分：BIOS芯片、南北桥芯片、RAID控制芯片；
2.扩充槽部分：内存插槽、AGP插槽、PCI Express插槽、CNR插槽；
3.对外接口部分： 硬盘接口、软驱接口、COM接口(串口)、PS/2接口、USB接口、 LPT接口(并口)、MIDI接口 、SATA接口

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