Internal Components of a Processor

What is the main function of the control unit?

• Coordinate activities of the processor
• Store data in memory
• Perform arithmetic operations
• Generate clock pulses

Which register holds the address of the next instruction to be executed?

• Control unit
• Program counter
• Memory address register
• Memory data register

What is the purpose of the memory address register?

• Hold data temporarily
• Store memory addresses
• Perform arithmetic operations
• Control interrupt requests

Which register temporarily stores data read from or to be written to main memory?

• Control unit
• Program counter
• Memory address register
• Memory data register

What does ALU stand for?

• Arithmetic Logic Unit
• Address Lookup Unit
• Assembly Language Unit
• Accumulator Logic Unit

What type of operations does the ALU perform?

• Arithmetic and logical
• Memory read and write
• Control and command
• Interrupt and status

Which register is used to temporarily hold the results of calculations?

• Control unit
• Program counter
• Memory address register
• Accumulator

What is the purpose of the address bus?

• Carry memory addresses
• Carry data between CPU and memory
• Carry control signals
• Carry interrupt requests

What is the purpose of the data bus?

• Carry memory addresses
• Carry data between CPU and memory
• Carry control signals
• Carry interrupt requests

What is the purpose of the control bus?

• Carry memory addresses
• Carry data between CPU and memory
• Carry control signals
• Carry interrupt requests