Abstract:
Disclosed is an electronic cash register comprising an input unit including numeric keys to enter the numerical information such as price and function keys to enter a variety of transaction information, an internal processing circuit to process the numerical information entered by the input unit, an output unit to deliver numerical information entered by the input unit or numerical information processed by the internal processing circuit, a first memory to store the cumulative total values of the numerical information occurring from various transactions, a drawer to keep and store the cash, which is opened by an open command signal sent from the internal processing circuit at the end of various transactions, a timer to start timing in response to the open command signal of the drawer and to stop the timing action in relation to the closing action of the drawer, and a second memory to store a time information corresponding to the measured period by the timer according to the timing action of the timer.