AI

Question 1

Purpose of the Fetch Phase:

Answer 1

The CPU fetches the instruction from memory. The PC provides the memory address, and the instruction is transferred to the IR via the Data Bus.

Question 2

Components Involved in the Fetch Phase:

Answer 2

PC (Program Counter), MAR (Memory Address Register), MBR (Memory Buffer Register), IR (Instruction Register), Control Bus, Data Bus.

Question 3

Purpose of the Execute Phase:

Answer 3

The instruction in the IR is decoded and executed. This involves performing operations (e.g., arithmetic) using the ALU, or transferring data using the Data Bus.

Question 4

Components Involved in the Execute Phase:

Answer 4

IR (Instruction Register), ALU (Arithmetic Logic Unit), Accumulator, Control Bus, Data Bus.