G11 L2 REPEAT

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

• To store data permanently in the CPU

• To retrieve, interpret, and execute instructions

• To increase the clock speed of the processor

• To transfer data directly to external storage

Which component holds the memory address of the next instruction to be executed?

• Memory Data Register (MDR)

• Accumulator (ACC)

• Program Counter (PC)

• Current Instruction Register (CIR)

During the fetch stage, which register temporarily stores the instruction retrieved from memory?

• Memory Address Register (MAR)

• Memory Data Register (MDR)

• Current Instruction Register (CIR)

• Accumulator (ACC)

What happens during the decode stage of the FDE cycle?

• The instruction is retrieved from memory

• The Control Unit interprets the instruction

• The instruction is transferred to the Memory Data Register

• The instruction is stored permanently in the CPU

What is the final step of the FDE cycle?

• The instruction is executed

• The instruction is stored in memory

• The Program Counter is reset to zero

• The CPU shuts down

What does the Memory Address Register (MAR) store?

• The instruction being executed

• The data needed for execution

• The memory address of the instruction or data being fetched

• The result of calculations

Which bus is responsible for carrying memory addresses from the CPU to memory?

• Control Bus

• Address Bus

• Data Bus

• Instruction Bus

What role does the Control Unit (CU) play in the FDE cycle?

• It stores data temporarily for calculations

• It directs and manages the execution of instructions

• It increases the clock speed of the processor

• It permanently stores program instructions

Which register holds the current instruction being processed?

• Program Counter (PC)

• Memory Address Register (MAR)

• Current Instruction Register (CIR)

• Accumulator (ACC)

What does the Accumulator (ACC) store?

• The memory address of the next instruction

• The result of calculations and intermediate data

• The instruction currently being executed

• The control signals sent by the Control Unit