ICS Architecture

  https://www.youtube.com/watch?v=sCd--Tsj4sM (Links to an external site.) After watching the "Industrial Control System (ICS) and SCADA: Risks and Solutions" video above, answer the following each in a separate paragraph: What is a PLC? ( Programmable Logic Controller ) What is a DCS? ( Distributed Control System ) What is a SIS? ( Safety Instrumented System ) Why is the HMI important? ( Human Machine Interface ) Why is having the IT network and the ICS network as one?