Computer simulations are the tools used to mathematically model natural systems in diverse fields of chemistry, astrophysics, biology, computational physics, social science, climatology, psychology, etc. They can be categorized into small simulations and large-scale simulations depending upon their usage. The different types of computer simulations are dynamic system simulation, stochastic or deterministic, local or distributed, and continuous or discrete simulations. Research in the field of computer simulation has extended its applications in the domains of weather forecasting, organizational management, traffic engineering, crop-soil systems, etc. This book is compiled in such a manner, that it will provide in-depth knowledge about the theory and development of computer simulation. It presents researches and studies performed by experts across the globe. Scientists and students actively engaged in this field will find this book full of crucial and unexplored concepts.