What is binary number system in Computer

In mathematical calculations binary number is a number expressed in the base 2 number system. The binary number system displays all numbers only with 0 and 1. The base of this number system is 2.  Computer operate in binary number system. It means computer stores data and perform calculations using only two digits-  0 (zero) and 1 (one).

Example of a binary number: 11001

A single binary digit is called bit. The number above has 5 bits.

A bit can only represent true (1) or false (0) in Boolean logic. Multiple binary digits used to represent large numbers and perform complex functions.