GCSE COMPUTER - Fetch, Decode & Execute Cycle

Instructions are fetched from RAM

• True

• False

• Only the first one

Which part of the fetch execute cycle involves retrieving an instruction from a memory address

• Fetch
• Execute
• Decode

Which part of the fetch execute cycle involves the CPU identifying the operation code (op-code) part of the instruction which

• Decode
• Fetch
• Execute

Which part of the fetch execute cycle links together the parts of the CPU that are needed to carry out the instruction.

• Execute
• Decode
• Fetch

The ALU is used in which stage(s)

• fetch

• decode

• execute

• fetch and execute

• fetch and decode

The fetch execute cycle runs continuously when the computer is turned on.

• True
• False

The address of the next instruction to be fetched is stored in the program counter

• True

• False

After an instruction is fetched, the program counter is updated so that the CPU knows the address of the next instruction to be fetched.

• True
• False

MAR contains

• Current instruction

• Address of next instruction to be fetched

• The current instruction address

• Halt

The correct order is

• Fetch, Decode, Execute
• Decode, Execute, Fetch
• Execute, Decode, Fetch
• Decode, Fetch, Execute