What is a Number System?

Number System defines a set of values used to represent
quantity.There are different types of Number systems.

Decimal Number

Binary Number

Octal Number

Hexadecimal Number

What is Base/Radix ?

The base of number system is simply the number of
different digits , including zero that exist in the number
system.

A number system of radix r, typically has a set of r
allowed digits belongs to (0,1,2…..r-1).

Example

(N)r (0,1,2,…,r-1)

(195)10 (0,1,2,3,…,9)

Types of Number Systems

Quantities/Counting