Number system :- In the computer when we type some words or letter computer convert into number because computer understand only number This Technic called number system. computer understand binary number system 0 and 1.

Number system–

There are 4 type number system

1.Binary number system

2. Octal number system

3. Decimal number system

4. Hexadecimal number system

1.** Binary number system**– in this 0 and 1 is called binary number system

base of binary are 2. computer understand only binary number system

2-**Octal number system** – in this number system 0,1,2,3,4,5,6,7 are called octal number system and base is 8

3. **Decimal number system** – in this number system 0,1,2,3,4,5,6,7,8,9 are called the number system.and base is 10.

4- **Hexadecimal number system**– in this number system 0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f are hexadecimal number system. and base of hexadecimal are 16.