Digital Control of Dynamic Systems 3rd Edition
Chapter 1 • Introduction
A Perspective on Digital Control
The control of physical systems with a digital computer or microcontroller is becoming more and more common. Examples of electromechanical servomechanisms exist in aircraft, automobiles, mass-transit vehicles, oil refineries, and paper-making machines. Furthermore, many new digital control applications are being stimulated by microprocessor technology including control of various aspects of automobiles and household appliances.

Among the advantages of digital approaches for control are the increased flexibility of the control programs and the decision-making or logic capability of digital systems, which can be combined with the dynamic control function to meet other system requirements. In addition, one hardware design can be used with many different software variations on a broad range of products, thus simplifying and reducing the design time.