binary number

A **binary number** is a number expressed in the base-2 numeral system, which uses only two digits: 0 and 1. It is the fundamental language of computers and digital systems, representing data and instructions through sequences of bits. Understanding binary numbers is essential for grasping how computers perform calculations, store information, and execute programs. This tag covers topics such as binary arithmetic, conversion between binary and other number systems, and applications in computing and electronics.