Distinguish between Binary and octal number system

The binary number system is a base-2 system, using only two digits: 0 and 1. It is fundamental to digital electronics and computer systems. The octal number system is a base-8 system, using eight digits: 0, 1, 2, 3, 4, 5, 6, and 7. It is often used as a compact representation of binary numbers, where each octal digit corresponds to three binary digits.