A programmable logic controller (PLC) or programmable controller is an industrial computer that has been ruggedized and adapted for the control of manufacturing
operating system of the System/38 is the ControlProgramFacility (CPF). CPF is not related to the System Support Program operating system of the IBM System/34
paramount.[citation needed] Operating system specific assist, Extended ControlProgram Support (ECPS). extended facility and extension features for OS/VS1
supervisory control and data acquisition (SCADA) systems and is believed to be responsible for causing substantial damage to the nuclear program of Iran.