Any program residing in the memory contains a set of instruction that need to be executed by the computer in a sequential MANNER. This cycle for EVERY instruction is known as the instruction cycle . The cycle consists of the following steps:

• Fetch instruction: Like the name stated in this process the cpu fetches the instruction from the memory. The PC get loaded with the address of the instruction.
• Decode: the instruction: In this process the instruction gets decoded by the PROCESSOR.In case the instruction has an indirect address the effective address is READ from the memory.Fetch the operand from the memory
• Execution: once the instruction gets decoded the processor executes the instruction.
• RESULT: Store the result in the appropriate place.

Any program residing in the memory contains a set of instruction that need to be executed by the computer in a sequential manner. This cycle for every instruction is known as the instruction cycle . The cycle consists of the following steps: