Industrial control systems can be categorized in two types: open-loop and closed-loop systems. The open-loop control system is a continuous control system that provides no feedback from its output.

Just over a decade ago, an article titled, "Advanced Control Strategies Move into the Field" (Control, October 2008), highlighted three evolving trends in the process control world that would "make ...

We could be here for a while. This is Zoe. Zoe knows that systems are made of inputs, processes and outputs and how they work. So, an input device is something that takes a real-world signal like ...

We use computers close computerA device that processes information by following a set of rules called a program., computing devices and computer systems close computer systemA series of connected ...

Robert L. Clark of Duke University's Pratt School of Engineering explains. Just for the record, feedback is actually the mechanism used to control almost every electronic device manufactured.