Binary number system.

The binary number system consists of only two digits. These 2 digits are 0 & 1. The binary number system is known as base 2 system because it has 2 digits. The binary system is a place value system in which each binary digit has its own value expressed as a power or 2. The place to the left of binary point are positive powers of 2 and places to the right are negative power of 2. The term binary digit is known as bit. The left most binary digit is called the most significant bit(MSB) and the right most binary digit is called the least significant bit (LSB).