This book is designed for the students of Engineering & Master of Computer Application (MCA), industrial Engineers and operations research specialists. This book provides an excellent coverage on System Modeling and Simulation with the help of examples and applications taken from vast vareas lie, computer system, Statics, Manufacturing and Insurance. The book emphasises simulation of discrete, stochastic and dynamic systems. It also provides in depth discussion on queuing system, inventory system reliability system. This book also includes problems of probability and statistics in evaluating simulation experiments. The prime purpose of the book is to provide knowledge to students of the topic and techniques of system simulation.