Difference between octal and decimal numbers

Octal Numbers	Decimal Number
Octal numbers are made up of 8 distinct symbols or digits from 0 to 7 ( 0, 1, 2, 3, 4, 5, 6, 7).	Decimal numbers are made up of 10 distinct symbols or digits ranging from 0 to 9 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9).
The radix for octal number is 8 i.e all the digits in an octal number are expressed as powers of 8.	The radix for decimal number is 10 i.e all the digits or values in a decimal number are expressed as of powers of 10.
Example of octal number : 7777 ( Equivalent to four thousand ninety five in decimal )	Example of Decimal number : 4095 ( Four thousand ninety five)
Applications of octal numbers The usage of octal number system has decreased since the introduction of hexadecimal number system, but still octal numbers are used in some programming languages.	Applications of decimal numbers Decimal numbers are used in all financial institutions and most commonly used in our day to day activities.