Introduction, Classification, Mathematical modeling of physical systems, Introduction to discrete time control systems, z-plane analysis of discrete time control systems, Transient response analysis, Design specifications and performance indices, Concept of stability and algebraic criteria, Root locus analysis, frequency response analysis, Bode diagrams, polar plots,  Nyquist plots, Stability in the frequency domain, Basic control actions and response of control systems. Introduction to control system design using the root locus and frequency-domain  approach.