The history of the relay. How a computer appeared from radio, phone and telegraph. McDonald K.

Over the past forty years, digital technologies have transformed our world almost beyond recognition. We spend our lives surrounded by laptops, phones, tablets and game consoles, use computers for work, playing, training and dating. This book tells the history of the appearance and development of those modest components without which it would be impossible - a transistor and its direct ancestors, a relay and an electronic lamp.

The story revives the curious facts from the biographies of scientists and innovators, from Luigi Galvani and Thomas Edison to Alan Turing, who contributed to the evolution of digital devices due to their brilliant ideas and perseverance in achieving the goal.

The publication is addressed to a wide circle of readers interested in the development of technologies.