🤖 PLC (Programmable Logic Controller): A PLC is an industrial digital computer used to automate electromechanical processes, such as control of machinery on factory assembly lines, machines, or robotic devices. Executes real-time control logic based on inputs/outputs (I/O). Programs are usually written in ladder logic, function block, or structured text. Known for high reliability, ruggedness, and deterministic control 🖥️ SCADA (Supervisory Control and Data Acquisition): SCADA is a software system used to monitor, supervise, and control industrial processes from a central location. Provides a graphical user interface (HMI) for operators. Collects real-time data from field devices (PLCs, RTUs). Enables data logging, alarm handling, and remote control. Commonly used in power plants, water treatment, oil & gas, etc.