Book for children, parents and teachers. Basic concepts of programming, principles of data storage and conversion, standard programming techniques. The book is addressed to schoolchildren 12-15 years old who want to learn how to compile programs for a personal computer. The Visual Basic system was chosen as the language and programming environment, as the most accessible and easy to learn. The book is designed for independent work. The authors provided in advance answers to questions that most often arise in the early stages of training. The main task of the book is to captivate the reader with interesting examples and bring him to the level after which he will be able to expand his knowledge with the help of educational and reference manuals.