Computer systems consist of two very different types of elements：Hardware，which includes all the physical things that can be touched and（），which tells thehardware how to do.
- ASoftware
- BCourseware
- COperatingsystem
- DI/Odevice
问题
Computer systems consist of two very d
参考解析：
分类：电子商务员(综合练习二)题库
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