A number system of base r is a system that uses distinct symbols for r digits.
There are four types of number system-
- Decimal number system
- Binary number system
- Octal number system
- Hexadecimal number system
Decimal Number System:
Decimal number system has base 10. This number system contains 10 digits. These are 0,1,2,3,4,5,6,7,8,9. So this number system has base 10.
For e.g. (456)10
Binary Number System:
In Binary number system number can be represented using 2 digits
(0 and 1) only .so it has base 2.
For e.g. (101101)2
Octal Number System:
In Octal number system number can be represented using 8 digits These are 0,1,2,3,4,5,6,7.so it has base 8 .
For e.g. (3457)8
Hexadecimal Number System:
In Hexadecimal number system number can be represented using 16 digits These are 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F where A=10 B=11,C=12,D=13,E14,F=15
For e.g. (345A) 16