The Base-2 system, also known as the binary system, is a numerical system that uses only two digits: 0 and 1. It is the foundation of computer science and digital electronics, as computers process data in binary form. Each digit in a binary number represents a power of 2, starting from the rightmost digit, which represents 2^0. In the Base-2 system, the value of a binary number is calculated by summing the products of each digit and its corresponding power of 2. For example, the binary number 1011 represents the decimal number 11 because it equals 1×2^3 + 0×2^2 + 1×2^1 + 1×2^0. This simple yet powerful system allows for efficient data representation and processing in modern technology.