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
  3. B, A, D, C
  4. A, B, D, C

Answer (Detailed Solution Below)

Option 2 : B, D, A, C

Detailed Solution

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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.

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