The document presents a detailed overview of the SCADA (Supervisory Control and Data Acquisition) system, which is a computer-based control system used in various industries to monitor and control equipment. It discusses the evolution of SCADA from early monolithic systems to modern networked and IoT-based systems and outlines its components, including Human Machine Interfaces (HMI) and Programmable Logic Controllers (PLC). The SCADA system is essential for efficient data acquisition, real-time monitoring, and control across various industries such as oil and gas, power generation, and water treatment.