DCC Control, or Digital Command Control, is a system used in model railroading that allows for precise control of multiple trains on the same track. Unlike traditional systems that rely on changing track power, DCC sends digital signals through the rails, enabling individual control of speed, direction, and functions for each locomotive. With DCC, users can operate several trains simultaneously without interference. This technology also supports various accessories, such as lights and sound systems, enhancing the realism of the model train experience. Overall, DCC provides a more flexible and dynamic way to manage model railroads.