Question 113

Computer Awareness Structure of instructions in CPU Medium

An I/O processor controls the flow of information between

(A) cache memory and I/O devices
(B) main memory and I/O devices
(C) two I/O devices
(D) cache and main memories
✓ Correct Answer: Option B Verified Solution

📘 Step-by-Step Solution & Detailed Explanation:

The correct answer is main memory and I/O devices. An I/O processor (also known as an I/O controller or DMA controller) manages the data transfer between the main memory and I/O devices. It helps offload data transfer tasks from the CPU, improving system performance and efficiency.

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