A woman presents a Bagua (the Eight Diagrams) abacus of the Ming Dynasty (1368-1644) in Huizhou County, east China's Anhui Province July 17, 2006. This abacus can be used for both calculation and entertainment. A special calculating tool in ancient China, the abacus has gradually faded away from people's life at a time when computers prevailed. In Huizhou, however, abacuses can still be found almost everywhere. (Xinhua Photo)

A special abacus embedded in an instrument. (Xinhua Photo)

A wall decorated with an abacus. (Xinhua Photo)

A man moves the beads of an abacus on a silver ring of the Qing Dynasty (1644-1912) with a steel needle. The 1.2-cc-long, 0.7-cc-wide abacus is smaller than the thumb, but has all the parts of a regular one. (Xinhua Photo)

An waitress uses computer infront of a giant abacus in a hotel in Huizhou County. (Xinhua Photo)

Editor: Wing