4 process cycle
1) reads and 2) interprets machine language
3) executes and 4) stores the code performed by CPU

17- What is the Data bus and what is the Address bus?
A data bus is a system (of electrical wires) found inside a device and used to send information between two or more components.
An address bus is a computer bus that transfers data according to the location it has to be stored in. It follows identified physical addresses which is always specified by the processor.

18- What is the difference between the Operating System and Application Software?

An Operating System is a software that acts as an interface between you and the hardware by prompting a graphical user interface (GUI).
On the other hand, an application software