A-level CPU (video)

Which of the following is NOT a main internal component of a processor?

• Registers
• Hard Drive
• CU
• ALU

Which component of a processor is primarily responsible for coordinating all activities and directing the flow of data between the CPU and other devices?

• Data Bus
• Control Unit
• Registers
• Arithmetic Logic Unit

What is the primary function of the Control Unit (CU) in a processor?

• To store data temporarily
• To perform calculations
• To coordinate all activities of the processor
• To hold the address of the next instruction

How does the Program Counter (PC) function in a CPU?

• It coordinates the activities of the processor
• It performs arithmetic operations
• It stores the current instruction
• It holds the address of the next instruction to be executed

Which register holds the address of the memory location for data fetching or writing?

• Current Instruction Register
• Program Counter
• Accumulator
• Memory Address Register

Which component is responsible for temporarily storing data being read from or written to main memory?

• Memory Address Register
• Memory Data Register
• Current Instruction Register
• Accumulator

What does the Memory Data Register (MDR) do?

• Holds the address of the next instruction
• Temporarily stores data being read from or written to main memory
• Performs arithmetic operations
• Stores the current instruction

Which of the following registers holds the current instruction being executed?

• Status Register
• Memory Address Register
• Current Instruction Register
• Program Counter

Which component of a processor is responsible for performing arithmetic and logical operations?

• Arithmetic Logic Unit
• Memory Data Register
• Control Unit
• Registers

What is the role of the Accumulator (ACC) in a CPU?

• To hold the address of the next instruction
• To store data or control information
• To perform logical operations
• To coordinate the activities of the processor