The idea that the digital age has fundamentally changed our everyday perception of the world is not new and is well known to cultural historians. However, in Before Computers…, Stephen Robertson challenges the idea that the mid-20th century represented a single turning point in this process. He explores all the knowledge, inventions, and concepts—all the ways in which we thought evolved—that preceded the information technology revolution of the second half of the 20th century, tracing the path from the origins of data processing to the earliest forms of human technology, such as the development of writing, and weaving together a comprehensive history of revolutionary moments in the development of information technology into a single, nonlinear narrative.