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 languagues.

Applications of decimal numbers
  • Decimal numbers are used in all financial institutions and most commonly used in our day to day activities.

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