QUESTION THREE $[20]$

$3\mathrm{.}1$ A computer can be viewed as a system because it is interrelated, that is it accepts input, processes the input and produces output

With regards to the above statement discuss the concept of a CPU. $(10)$

$3\mathrm{.}2$ Programming is a specialized form of the age$-$old process of problem

solving.

With regards to the above statement, explain the process that programmers use to write a programme. $(10)$