Digital circuits are electronic circuits that operate using discrete values, typically represented as binary numbers (0s and 1s). They are the foundation of modern electronics, enabling devices like computers, smartphones, and digital cameras to process and store information. Digital circuits use components such as transistors, logic gates, and flip-flops to perform various functions, including arithmetic operations and data storage. These circuits are designed to perform specific tasks by combining simple logic operations. For example, AND, OR, and NOT gates are basic building blocks that can be combined to create more complex circuits. Digital circuits are preferred over analog circuits for their reliability, ease of design, and ability to handle noise effectively.