When an interrupt occurs, the CPU suspends the current process to deal with the problem. Interrupt service is the term for this. What is the justification for halting the current procedure? Instead, why don't we just complete the current procedure and deal with the interruption later?

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter6: System Integration And Performance
Section: Chapter Questions
Problem 33VE
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When an interrupt occurs, the CPU suspends the current process to deal with the problem.
Interrupt service is the term for this.
What is the justification for halting the current procedure?
Instead, why don't we just complete the current procedure and deal with the interruption later? 

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