The document discusses process control systems as a type of management support information system. It defines process control systems as monitoring and controlling physical processes through electronic sensors linked to computers that make adjustments based on continual monitoring of industrial processes. As an example, it provides a petroleum refinery that uses process control systems to monitor chemical processes and make instant adjustments to control the refinery process. The presentation was given by Mr. Aloshy Cheriyan on process control systems as part of a management information systems topic.