1. Almost every activity done on a daily bases involves numbers and some form of calculation or the other. An example of such calculation could be when shopping, a simple addition of denary numbers. This is done using the base 10 number system.
2. Hexadecimal number system helps in the representation of memory address, we use a system almost every day and perform multiple functions, needing referencing to the address of instructions. This is possible with the aid of the hexadecimal number system.