Computer systems consist of two very different types of elements:(71 ) , which includes all the physical things that can be touc

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问题 Computer systems consist of two very different types of elements:(71 ) , which includes all the physical things that can be touched and Software, which tells the hardware how to do.

选项 A、Operating system
B、I/O devices
C、Courseware
D、Hardware

答案D

解析
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