The book is a tutorial on Turbo Pascal, allowing everyone to learn the basics of programming on their own or under the guidance of an experienced teacher. The description of the Turbo Pascal programming system itself is supplemented with information about number systems, algorithms and programs, as well as test questions and tasks, which allows this book to be used as a textbook on the courses "Informatics," "Fundamentals of Informatics," "Programming in high-level languages," etc.