: Features include Ada Lovelace , Alan Turing , Grace Hopper , and Bill Gates .

: Each of the 250 entries features a concise one-page summary paired with stunning, full-page photography or illustrations.

The narrative is built on the fundamental human desire to understand and manipulate the environment through quantity and data. The authors organize the content into several key thematic areas:

: The text explores the shift to vacuum tubes, transistors, and integrated circuits, marking the birth of modern mainframes and minicomputers.

: The journey begins with the Sumerian abacus (c. 2500 BCE), highlighting the transition from finger-counting to proxy devices for higher-quantity management.

: It argues that inventions do not happen in isolation; for instance, 1970s cryptography laid the groundwork for secure 1990s internet commerce. Accessibility and Format

Currently, this book is available through various retailers: