Structure of the CPU - Quiz

What is the primary function of the Arithmetic and Logic Unit (ALU) in the CPU?

• To decode program instructions

• To perform arithmetic and logical operations

• To store data temporarily

• To manage the control signals

Which component of the CPU is responsible for executing the fetch-decode-execute cycle?

• Registers

• Buses

• Control Unit (CU)

• Arithmetic and Logic Unit (ALU)

What does the Program Counter (PC) hold?

• The result of calculations

• The address of the next instruction

• The current instruction being executed

• The data retrieved from memory

Which register holds the data that has been retrieved from memory?

• Accumulator (ACC)

• Memory Data Register (MDR)

• Program Counter (PC)

• Memory Address Register (MAR)

What is the function of the data bus in a Von Neumann CPU?

• To send addresses to the main memory

• To store program instructions

• To send control signals to other devices

• To retrieve data and instructions from main memory

Which of the following is NOT a special purpose register in the CPU?

• Control Unit (CU)

• Program Counter (PC)

• Accumulator (ACC)

• Memory Data Register (MDR)

What is the role of the control bus in a computer system?

• To send data to the CPU

• To send control signals to other devices

• To store the current instruction

• To hold the address of the next instruction

Which component of the CPU coordinates its activity?

• The decoder

• The clock

• The ALU

• The data bus

What does the Memory Address Register (MAR) hold?

• The data retrieved from memory

• The address of the location in memory

• The current instruction being executed

• The result of calculations

Which bus is responsible for sending addresses to the main memory?

• Data bus

• Address bus

• Control bus

• Instruction bus