| 摘要 |
<p>A POS (point of sale) system with calling for help function and method using the POS system are provided. The POS system includes a trade unit, a memory unit, a currency storage unit, a security unit and a security button. The trade unit receives trade information according to a trade. The memory unit saves the trade information. The currency storage unit has a drawer and a switch for opening or closing the drawer. The security unit is used for switching the security unit between a first state and a second state which the security unit generates a warming signal to a remote host.</p> |
