A DCS, or Distributed Control System, is a specialized control system used primarily in large-scale industrial processes, such as oil refining, power generation, and chemical processing. Unlike PLCs, which are typically centralized, DCSs distribute control functions across multiple processors and workstations connected via a network. This architecture allows for greater scalability, flexibility, and redundancy. DCSs are designed to handle complex and continuous processes, providing real-time monitoring, control, and data acquisition. They often feature advanced functions such as regulatory control, sequence control, and alarm management. DCSs play a crucial role in optimizing efficiency, safety, and productivity in industrial plants.