三总线结构的计算机总线系统由（ ）组成。
- A.CPU总线、内存总线和IO总线
- B.数据总线、地址总线和控制总线
- C.系统总线、内部总线和外部总线
- D.串行总线、并行总线和PCI总线
正确答案及解析
正确答案
解析
本题考查计算机系统基础知识。总线上传输的信息类型分为数据、地址和控制，因此总线由数据总线、地址总线和控制总线组成。
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