SCADA systems are used to monitor and control processes in various fields like manufacturing and utilities. It collects data from sensors, transmits it to a central computer which stores the information. The SCADA system consists of hardware for input/output signals, controllers, networks, a graphical user interface, and communication tools. It gathers data, transfers it, delivers it, and handles processes. SCADA is well-suited for tasks like weather monitoring and power plant control. It provides benefits like increased quality, lower costs, easy integration, and capital investment protection by allowing remote monitoring and control. Common industries that use SCADA include manufacturing, facilities, energy, water, and transit.