what is binary number system in computer

The binary number system is a way of representing numbers in computer architecture. It is a base-2 numeral system, which means that it uses only two symbols or digits, 0 (zero) and 1 (one), to represent all numbers. In the binary system, each digit is called a bit, which is the smallest unit of data in computing. The position of each digit in a binary number determines its decimal value. For example, the binary number (101)2 represents the decimal number 5, where the first digit from the right represents 2^0 (1), the second digit represents 2^1 (2), and the third digit represents 2^2 (4). The binary system is the primary language of computing systems, and it enables devices to store, access, and manipulate all types of information directed to and from the CPU or memory. The binary schema of digital 1s and 0s offers a simple and elegant way for computers to work, and it also offers an efficient way to control logic circuits and to detect an electrical signals true (1) and false (0) states.