Today, supercomputing is indispensable to the development of a nation-from strategic studies on the topic of national security to improvements in people's living conditions. This book depicts the arduous journey of how China's supercomputers developed from nothing and grew from being a laggard to a world leader. It tells the legendary story of China's ""Yinhe"" and ""Tianhe"" series of supercomputers and it demonstrates the patriotic dedication and professionalism of generations of Chinese scientists and researchers in great detail.