题目内容
The power supply，the motherboard and the storage devices are housed in the main unit.
查看答案
搜索结果不匹配？点我反馈
更多问题
the expansion slots are in the CPU for additional components to be plugged in.
storage devices include floppy disk and hard disk drives.
The expansion slots on the motherboard are for new components to be added.
If you want to communicate between computers over phone lines, you usually purchase an internal or external modem.
微信支付 
支付宝支付