G11 L2 MINI

What is the primary purpose of the Fetch-Decode-Execute (FDE) cycle?

• To store data permanently

• To manage power consumption

• To process instructions step by step

• To transfer data between computers

Which stage of the FDE cycle retrieves an instruction from memory?

• Fetch

• Decode

• Execute

• Store

What happens during the Decode stage of the FDE cycle?

• The instruction is retrieved from memory

• The instruction is interpreted and prepared for execution

• The Program Counter is updated

• The instruction is executed immediately

Which register keeps track of the memory address of the next instruction?

• Accumulator (ACC)

• Memory Data Register (MDR)

• Program Counter (PC)

• Control Unit (CU)

What does the Memory Address Register (MAR) store?

• The data being transferred

• The instruction currently being executed

• The address of the instruction or data being fetched

• The result of an arithmetic operation

What is the role of the Memory Data Register (MDR)?

• To store the address of the next instruction

• To temporarily hold data or instructions fetched from memory

• To execute instructions

• To direct CPU operations

Where is an instruction stored just before it is decoded?

• Accumulator (ACC)

• Memory Address Register (MAR)

• Current Instruction Register (CIR)

• Data Bus

What is the function of the Accumulator (ACC)?

• To store temporary results of calculations

• To hold memory addresses

• To decode instructions

• To update the Program Counter

Which CPU component directs operations and manages the FDE cycle?

• Arithmetic Logic Unit (ALU)

• Control Unit (CU)

• Data Bus

• Memory Address Register (MAR)

What is the purpose of the Data Bus?

• To transfer memory addresses

• To store program instructions

• To send control signals

• To transfer data between the CPU and memory