This package, including the PC program supplied, offers a quick start into the world of electronic circuits and enables you to develop and build electronic circuits yourself quickly and effortlessly. The corresponding calculation formulas are also included in the package, so that tinkerers also have the theory under control at all times if they wish. With the help of the included electronics book, they will become electronics professionals. The enclosed CD-ROM also contains numerous full software versions that can be used to check the results on the real circuit.