On November 21, 1981, “Yinhe I” supercomputer, with a performance of 100 million Flops, was successfully developed by National University of Defense Technology and got by state verification in Changsha. Yinhe I was at that time the fastest and most powerful computer. Its birth filled in the gap in domestic supercomputer research and marked China entering the rank of international research of supercomputer. China had become the third country in the world which could develop large-scale computer after the US and Japan.

It was then used in the detection of oil and coal mines. Besides, it was also used for the satellite route analysis. At that time, only a few developed countries could develop supercomputer. The success of Yinhe brought Chinese computer industry into a very fast development. After Yinhe one, the Yinhe Two and Three came out in 1992 and 1993, respectively.

In 1997, the large-scale computer “Galaxy-III” that could calculate 13 billion times in one second was developed in the University of National Defense Science and Technology. Galaxy series large-scale computers have displayed its prowess fully in the weather forecasting, which not only enabled our country to rank among few countries that could make mid-term numerical weather forecast, but also remarkably improved the capability of forecasting serious natural calamities and yield enormous economic and social efficiencies.