The book is designed to teach the basics of programming. The basic concepts of programming are considered, general programming techniques based on the application of mathematics are presented, such as the calculation of functions on sequences using the theory of inductive functions and the scheme of constructing a cycle using an invariant. The general principles of the device and the operation of the computer, typical processor commands and registers, addressing methods, methods of calling functions and transmitting parameters, etc. p. A significant part of the book is devoted to the basics of the C language . In addition to the basics of the language, it provides many examples of the implementation of algorithms in C, such as calculating the root of a function, bringing the matrix to a stepwise view by the Gaussian method, and t. p.