An external device may be connected to the central processing unit (CPU) by using interface cards and the extension bus. This allows the device to communicate with the CPU. Why?

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter2: Introduction To Systems Architecture
Section: Chapter Questions
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An external device may be connected to the central processing unit (CPU) by using interface cards and the extension bus. This allows the device to communicate with the CPU. Why?

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