GCSE Computer Architecture

What is the name of the register that stores the address of the next instruction to be fetched?

• Program Counter

• Memory Address Register

• Accumulator

• Current Instruction Register

What is the name of the register that stores the instruction that the CPU is executing at the moment?

• Current Instruction Register

• Program Counter

• Memory Data Register

• Accumulator

What is a collection of wires called that sends data and addresses around the CPU?

• A bus

• A connection

• A link

• A cable

What register is connected directly to the address bus?

• Memory Address Register

• Memory Data Register

• Program Counter

• Current Instruction Register

What register is connected directly to the data bus?

• Memory Address Register

• Memory Data Register

• Program Counter

• Current Instruction Register

Which of these is NOT a stage of the FDE cycle?

• Fetch

• Execute

• Decide

• Decode

Which of these does not happen in the Fetch stage?

• The Program Counter is incremented by 1

• The value in the Program Counter is sent to memory on the address bus

• The value returned from memory on the data bus is stored in the current instruction register

• The value returned from memory is added to the value in the accumulator.

Which of these is NOT a bus in the CPU?

• Address bus

• Data bus

• Control bus

• Execute bus

In hexadecimal, what would be the next value of the Program Counter after 0x09 if it was incremented?

• 0x0A

• 0x10

• 0xA0

• 0xFF

What is the part of the CPU called that performs calculations?

• ALU

• Control Unit

• Program Counter

• Memory