How does Microprocessor work?

Question :

How does Microprocessor work?

There are five important components in a microprocessor. They are Arithmetic and Logic Unit (ALU), Control Unit, Registers, Instruction Decoder and Bus. Microprocessor holds the number of instruction. Every instruction consists of multiple steps such as fetch, decode, executes and store. While running instruction in the microprocessor, it executes multiple steps as Fetch the input, Decode instruction, Execute instruction, Store result back in the memory. Here, Instruction gets fetched and input is given externally using I / O components. The microprocessor executes an instruction. The result gets stored in the externally connected memory unit.