Q53.Marks: +2.0UGC NET Paper 2: Computer Sc 6th Jan 2025 Shift 1
Correct the order of instruction cycle:
A. Read the effective address
B. Fetch the information
C. Execute the instruction
D. Decode the instruction
Choose the correct answer from the options given below:
1.A, B, C, D
2.B, D, A, C✓ Correct
3.B, A, D, C
4.A, B, D, C
Solution
The correct answer is Option 2: B, D, A, C.
Key Points
The instruction cycle is the process by which a computer retrieves, decodes, and executes an instruction.
The correct sequence of operations is:
Fetch the information (B): The instruction is fetched from memory.
Decode the instruction (D): The fetched instruction is decoded to understand the operation to be performed.
Read the effective address (A): The effective address of the data required for the operation is determined.
Execute the instruction (C): The instruction is executed and the desired operation is performed.
Additional Information
The instruction cycle is fundamental to the operation of all computers and involves multiple steps to ensure that the correct operations are performed accurately.
Each step in the cycle is crucial for the correct execution of instructions, ensuring that the computer processes data efficiently.
Understanding the instruction cycle is important for those studying computer architecture and assembly language programming.