When the CPU receives a signal, it stops whatever it is doing to deal with the incoming request. The mechanism operates as follows: The A' signal interrupts B's spooling, while C' handles interruptions and polls.

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter2: Introduction To Systems Architecture
Section: Chapter Questions
Problem 2VE: A(n) __________ is a storage location implemented in the CPU.
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When the CPU receives a signal, it stops whatever it is doing to deal with the incoming request. The mechanism operates as follows: The A' signal interrupts B's spooling, while C' handles interruptions and polls.

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