Computer simulations owns a giant history which together with technological development created a major influence on the human development. With computer simulation development today we have thousands of software tools which can simulate many processes and real systems which can predict a behavior of a particular system before its building, and this is providing continuous human development. Simulation development strongly growed up after the computer appear and develop that made an easier ways to create a simulation languages. Today, computer simulations are used in many fields such as trade, telecommunications, military exercises, logistic processes etc. Simulation is the process of creating a model of a real system and experimenting with that model with the aim of understanding the behavior of that system and/or developing various strategies of its functioning. Simulation modeling is one of the leading modern methods of computer modeling. It enables us to describe, understand and quantitatively analyse complex dynamic systems in different areas, from production and transport to education, economics and IT.