Technician tests Tianhe-1 (TH-1) supercomputer at north China's Tianjin, Dec. 25, 2009. The supercomputer, named Tianhe, meaning Milky Way, is theoretically able to do more than 1 quadrillion calculations per second at peak speed, which was already partly installed in Tianjin.

Editor: Guo Changdong Source: Xinhua