A bus request differs from an interrupt in that(a) an interrupt requires an external bus master to complete the operation(b) a bus request will interrupt a current instruction cycle(c) an interrupt cannot be masked(d) a bus request does not involve a response from the processor

A bus request differs from an interrupt in that(a) an interrupt requires an external bus master to complete the operation(b) a bus request will interrupt a current instruction cycle(c) an interrupt cannot be masked(d) a bus request does not involve a response from the processor

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter4: Processor Technology And Architecture

Section: Chapter Questions

Problem 15VE: A(n) ________________ instruction always alters the instruction execution sequence. A(n)...

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Concept explainers

Fundamentals of Input and Output Performance

The I/O subsystem is a component of computer system design that uses buses to assist communication between the Central Processing Unit, Computer Memory/Storage, and Input and Output Devices (that is known as peripheral devices). The I/O subsystem includes disc controllers, tape drives, discs, system buses, and other devices. The I/O database application reads and writes drives using the operating system windows I/O.

Question

A bus request differs from an interrupt in that
(a) an interrupt requires an external bus master to complete the operation
(b) a bus request will interrupt a current instruction cycle
(c) an interrupt cannot be masked
(d) a bus request does not involve a response from the processor

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