There are four types of number systems one decimalnumber system two binary number system 3 octal number system 4 hexadecimal number system decimal number system decimal number system have 10 symbols from zero to 9 to represent the system the system is a weighted system are given by the (10n - 10-n). This number system is used by Humans.
The binary number system has base two means two symbols zero and one are used to represent this system this number system is also a weighted system the weights of binary number system are given by 2n – 2-n. The computer system uses binary number system
This system has a base 8 means eight symbols from zero to 7 are used to represent this system like decimal and binary, the octal number system is also rated system the weights of octal number system are given by 8n - 8-n. The advantage of this number system is that each octal digit represent 3 binary digit.
This number system has a 16 base means 16 symbols are used to represent this system out of these six symbols turn our decimal digits from zero to 9 and six are alphabet from A to F (10 – 15). The main advantage of this system is that each hexadecimal digit represent four binary bits.
| Decimal | Binary | Octal | Hexa-Decimal | Base - 5 | Base - 7 |
|---|---|---|---|---|---|
| 0 | 0000 | 0 | 0 | 0 | 0 |
| 1 | 0001 | 1 | 1 | 1 | 1 |
| 2 | 0010 | 1 | 1 | 1 | 1 |
| 3 | 0011 | 3 | 3 | 3 | 3 |