NIMCET 2011 Computer Awareness Question 113 with Solution

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

View Dynamic Solution & Explanation ▼

Correct Solution: Option B

Step-by-step Solution:

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.