Computer Science Ques 666

Question: DMA module can communicate with CPU through_____

Options:

A) Interrupt

B) Cycle stealing

C) Branch instruction

D) Signal sensor

E) None of these

Show Answer

Answer:

Correct Answer: B

Solution:

  • Cycle stealing is a method of accessing RAM without interfering with the CPU. It is similar to DMA for allowing I/O controllers to read or write RAM without CPU intervention. It describes the stealing of a single CPU cycle to allow a DMA engine to per-form a DMA operation.
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