Software and Hardware Simulation of Information Systems Elements

The article considers the results of development and application of models of information (telecommunication, information control and computing) system elements and devices, implemented by various methods and simulation tools. The application of simulation for several purposes is justified: studying the basics of development, technology and protocol research, practical implementation of basic algorithms and technical solutions. The features and capabilities of the considered approaches and simulation environments in educational, research and engineering activities are revealed. The classification of simulation methods is proposed: analytical (mathematical), software, visual, circuit, their features and areas of effective application are analyzed. Illustrative examples of the implementation of models using both simulation tools and integrated development hardware and software environments of information systems are shown. For this purpose, licensed (for example, Matlab, Labview) and freely distributed (for example, Scilab) simulation environments, including built-in software and visual simulation components, as well as development environments for real software and hardware of information systems, were used.