Leak Detection (Intrumentation & Control Systems) Inventory Management (Control Systems) Security Systems. Plant Management. Control System Hardware. PLC (Programable Logic Controllers) Hysteresis. Control Theory. Control systems & complex numbers. Industrial Protocols. Control systems & complex numbers. Control Systems (Leak Detection System) Flow Computers (Instrument Engineering) Control Panels: Examples: Drafting (Engineering) I&C Comp & Electrical Engineering.