This well-known book which appears in two volumes is an introduction to the field of digital, sampled-data control. The second edition has been completely revised and expanded with new results. The two volumes form a unit. They take the reader systematically from fundamentals to problems of real applications with volume 2 concentrating on stochastic control, treatment of interconnected control systems, multivariable control and adaptive digital control systems. The final part deals with practical considerations including examples of computer-aided adaptive and self-tuning controllers for various technical processes. The work is directed towards students of electrical and mechanical engineering, computer science and other fields like biology, economics, mathematics and physics. It is also directed to engineers and scientists concerned with solving concrete problems.