Abacus, invented in ancient China more than 2,600 years ago, a traditional computing tool for businesses and widely used in Asian countries before the modern calculator was introduced. The instrument itself has an auspicious meaning and is a symbol of wealth, as the saying goes "when the abacus rattles, gold comes in barrels" The sturdy rectangular shape of abacus symbolize a man of righteousness and the smooth beads describe the dynamic and practical character of the Chinese businessman.