The book traces the history and evolution of the computer world, which can be divided into several periods: the period preceding the computer era; the period of the creation of the first computers and the appearance of the first programming languages; the period of formation and development of the computer industry, the emergence of computer systems and networks; the period of creation of object-oriented programming languages and new computer technologies. Each chapter of the book is dedicated to a separate period, inventors, designers and programmers - the architects of the computer world. For a wide range of readers