Supervisory Control and Data Acquisition (SCADA) is a system used to monitor and control industrial processes. It collects real-time data from sensors and devices, allowing operators to oversee operations from a central location. SCADA systems are commonly used in industries such as water treatment, electricity generation, and oil and gas. The main components of SCADA include remote terminal units (RTUs), programmable logic controllers (PLCs), and a central server. These components work together to gather data, send commands, and display information on user interfaces. This enables efficient management of complex systems and helps ensure safety and reliability.