PLC Programable logic controller, in this video we learn the basics of how programable logic controllers work, we look at how PLC's work, where they are used and how programable logic controllers replaced relay banks but still use relays. PLC Basics AND gate, automation engineering, what is a plc, logic gate #engineering #electric | The Engineering Mindset

One radio engineer — Fred Terman — had a plan. And it worked. Find the full video on our YouTube channel. #Stanford #siliconvalley #history #technologynews | Vox