Today, 22 years ago, on 22 June 1993 (Lunar Calendar, 3 May 1993) the successful development of our galaxy's all-digital simulation II computer was marked by another major breakthrough in our country's high-tech "Galaxy Digital Simulation-II" computer through national certification. Experts believe that the completion of this country's key real-time simulation project shows that our simulation development capabilities have spread into the leading international line. Computer simulation is really a high-tech computer simulation system with a high-performance physical system. The high-performance simulation computer is currently the most advanced international computing system for continuous simulation in the fields of aviation, space, weapons, transport, energy, chemistry and other fields. It has a unique role in large and large-scale real-time simulation in the fields