Number Systems And Codes
Common number systems used when working with computer include : a) BASE 10 ( Decimal ) b) BASE 2 ( Binary ) c) BASE 8 ( Octal ) d) BASE 16 ( Hexadecimal ) Decimal number ( BASE 10 ) Contains 10 symbols and is sometimes called the BASE 10 system. 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 Ex : 24 10 , 45 10 , 86 10 Binary number ( BASE 2 ) T he binary number system uses only the two symbols 0 and 1 and is sometimes called the BASE 2 system. E x : 0, 1, 10, 11, 110, 111, 1000, 1001 Ex : 11 2 , 1010 2 , 101 2 Octal number ( BASE 8 ) The octal number system uses the eight symbols 0, 1, 2, 3, 4, 5, 6 and 7. Octal numbers are also referred to as BASE 8 number. Ex : 37 8 , 52 8 , 46 8 Hexadecimal number ( BASE 16 ) The hexadecimal number system uses the 16 symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E a...