MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Instruction Cycle: Fetch, Decode and Execute Cycle. The execute instruction definition for the instruction cycle lays the basis for every processor. The cycle has three stages, Fetch, Decode and Execute.

Detailed explanation-2: -Now, the command will be executed. The operand is copied to the MAR, as it provides the address of the data to be loaded (0100 in this case). The data at address 0100 is then fetched from RAM and passed up the data bus to the MDR.

Detailed explanation-3: -The fetch execute cycle is a computer’s basic operation or instruction cycle. The computer retrieves a programming instruction from memory during the stages of the fetch execute cycle. It then begins to perform and execute the necessary actions for that instruction.

Detailed explanation-4: -It is the most basic CPU operation, and modern CPUs are able to perform millions of machine cycles per second. The cycle consists of three standard steps: fetch, decode and execute.