A smart modem can automatically dial, hang up, and answer incoming calls. Can you tell me who gives the modem the right instructions for this? What are the processes for spotting errors?

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter7: Input/output Technology
Section: Chapter Questions
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A smart modem can automatically dial, hang up, and answer incoming calls. Can you tell me who gives the modem the right instructions for this?
What are the processes for spotting errors?

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