Question $5.$ Answer the following questions:

a$.$ Provide a detailed description of the components that constitute a computer system.

b$.$ Explore the various levels of program code within a computer.

c$.$ Examine both the software and hardware components of a computer, outlining their respective functionalities.

d$.$ Provide a detailed description of the components of a processor.

e$.$ Explain the concept of Instruction Set Architecture $($ISA$).$