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Authors:
Linda Null ,julia Lobur
Chapter:
Marie An Introduction To A Simple Computer
Exercise:
Review Of Essential Terms And Concepts
Question:23 | ISBN:9780763704445 | Edition: 3

Question

23. How does a maskable interrupt differ from a non-maskable interrupt?

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Answer

Hardware interrupts are classified into two types which are as follows −

  • Maskable Interrupt − The hardware interrupts that can be delayed when a highest priority interrupt has occurred to the processor.

  • Non Maskable Interrupt − The hardware that cannot be delayed and immediately be serviced by the processor.

Maskable interrupt is different from Non-Maskable Interrrupt Because,

  • When maskable interrupt occur, it can be handled after executing the current instruction. When non-maskable interrupts occur, the current instructions and status are stored in stack for the CPU to handle the interrupt.

 

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