Question: QUESTION 4 a) Based on the figure below, there are six steps in Interrupt Driven 1/0 Cycle. Fill in the missing steps in the figure.

QUESTION 4 a) Based on the figure below, there are six

QUESTION 4 a) Based on the figure below, there are six steps in Interrupt Driven 1/0 Cycle. Fill in the missing steps in the figure. CPU + 1/O controller device driver initiates VO (1) CPU executing checks for interrupts between instructions 3 4 5 (iv) CPU resumes processing of Interrupted task (4 marks) Answer: b) Differentiate between Direct Memory Access (DMA) and Memory Mapped 1/0. (4 marks) c) Briefly explain device driver. (2 mark)

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