POS系统是随着计算机技术的普及、发展而出现的一种全新的自动化商业销售系统，又称销售点实时管理系统，即销售时的商品信息数据处理是在交易的一瞬间完成。

• POS system, which is called real-time management system of sales point too, means that commodity information data process was accomplished instantly during selling. So it is a new type of commercial sales system that come into practice with the popularization and development of computer technology.