Lesson 3 ... Central Processing Unit.

Central Processing Unit:

The basic tasks of the Central Processing Unit (CPU) is multiply, divide, subtract, and move its contents from one memory location onto another, the (CPU) consists of 3 more memory locations which called registers.


Registers are therefore memory locations whose role is to help with performing various mathematical operations or any other operations with data wherever data can be found. Look at the current situation. We have two independent entities (memory and CPU) which are interconnected, and thus any exchange of data is hindered, as well as its functionality. If, for example, we wish to add the contents of two memory locations and return the result again back to memory, we would need a connection between (memory and CPU). Simply stated, we must have some "way" through data goes from one block to another.