## Introduction Number System:

By analyzing meaningless and unorganized information (Data) by CPU, meaningful and organized (Meaningful & Organized) result i.e. Information is obtained. Number system is the basic basis for representing all these data and information in computer properly. Calculations are performed according to the rules of the number system. A number system is needed to write high level language programs to solve any complex mathematical problem easily.

## What is the number system?

A number system is a set of numbers (0-9), letters (A-F) or combinations of symbols; which helps in computer calculations.

## What are the different types of number system?

*Number systems are mainly divided into two categories. Namely –*

- Non-Positional Number System
- Positional Number System

## What is Non Positional Number System?

In non-positional number system the value of numbers does not depend on their position and in this case the numbers have no base value or radix. This method is very difficult to calculate. This method is not used in general mathematical work.

*Example: *Roman Number System (Roman Number System). How many Roman letters or symbols are used to represent numbers in this system?

For example, in the Roman system, decimal numbers are expressed as 1 as I, 2 as II, 3 as III, 4 as IV, 11 as XI, 12 as XII etc.

## What is positional number system?

In this type of number system, numbers have a specific **Base Value or Radiex**. Numbers are expressed in this way using a number of numbers or letters. In this case the value of numbers depends on their position. Positional number systems are divided into four categories. *Namely –*

- Decimal
- Binary
- Octal
- Hexadecimal

## Frequently Asked Question (FAQs):

- What is the number system?
- What are the different types of number system?
- What is Non Positional Number System?
- What is positional number system?