“From Whirlwind to MITRE: The R&D Story of The SAGE Air Defense Computer” is a comprehensive textbook published by MIT Press in 2000. This book delves into the history and development of the SAGE air defense computer system, showcasing the innovative technology and engineering involved in its creation. Written by a team of experts, including William Aspray Jr., Kent C. Redmond, Thomas M. Smith, and Thomas J. Misa, this hardcover book is part of the “History of Computing” series. With 548 pages and detailed insights into military science and history, this book offers a valuable resource for students and professionals interested in the evolution of computer technology.