This book follows the historical development of computers, emphasizing the shift from mere calculation to amplifying human thought and communication. It highlights key pioneers like Alan Turing, John von Neumann, and Doug Engelbart, detailing their foundational contributions in theoretical mathematics, computer architecture, and the concept of interactive computing. A major theme is the evolution of computing as a new metamedium for creativity and knowledge, moving from batch processing mainframes to the vision of personal computers like Alan Kay's Dynabook. Furthermore, the text explores the emergence of specialized software, such as expert systems (like MYCIN and DENDRAL) and hypertext (Ted Nelson's Xanadu), alongside the cultural and ethical implications of these technologies, including the rise of the hacker community and the concept of a collective intelligence fostered by computer networks.