This first part of the book, consisting of four parts, focuses on the concept of information and various forms of its presentation, focused on machine processing. The concept of algorithm, properties and classification of algorithms, methods of their formal description and execution are considered in detail. Provides general information about programming languages, their implementation and methods of programming . Applicative and imperative programming languages, as well as machine-oriented language elements are considered in detail. Much emphasis is placed on typical multi-language data structures, function declarations, procedures, and data types, with particular emphasis on recursive declarations. The presentation of the material systematically focuses on the egotheoretical aspects .. The book is aimed primarily at students of universities and leading technical universities, paying great attention to the fundamentality of education in the field of computer science. It will be very useful for teachers of subjects of this cycle.