Computer Hardward - Fetch, Decode & Execute Cycle

The correct order is

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

Instructions are fetched from main memory

• True
• False

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

An op-code

• specifies an instruction to be carried out
• specifies the data on which an operation is to be peformed

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

• True
• False

The address of the instruction 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

During the fetch execute cycle, the CPU fetches, decodes and executes a _________

• instruction
• bit
• token
• message