BCD

BCD, or Binary-Cossient Decimal, is a method of representing decimal numbers (the numbers we commonly use) in binary form, where each digit (0-9) is stored separately. In BCD, each decimal digit is encoded as a 4-bit binary number, making it easy to convert between human-readable decimal numbers and digital systems. For example, the number 59 is stored as two separate 4-bit groups: 0101 (for 5) and 1001 (for 9). BCD is often used in digital devices like calculators and digital displays because it simplifies the process of displaying and calculating decimal numbers electronically.