Question

what is binary number

Answer 1

Binary language consists of only two digits that is, 1 and 0. A computer can understand only binary language.

Answer 2

In mathematics and digital electronics, a binary number is a number expressed in the binary numeral system or base-2 numeral system which represents numeric values using two different symbols: typically 0 (zero) and 1 (one). The base-2 system is a positional notation with a radix of 2.