## Class 10 Computer Science Note

# NUMBER SYSTEM

**Number system**

Number system is an organized and systematic way of representing numbers.

**Decimal number system**

The number system which is formed by 0 to 9 is called decimal number system.

**Binary number system**

The number system which i sformed by 0 and 1 is called binary number system.

**octal number system**

The number system which is formed by eight different Digits (0-7) is known as octal number system.

**Radix of a number system**

The base or radix of a number system defines the range of possible values the digit may have.

**Hexadecimal number system**

The number and character set of hexadecimal number system are as follows:

Numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

Characters: A, B, C, D, E, F