Abstract: A customer order processing system includes a register terminal for sequentially transmitting customer order registered in the register terminal to a kitchen video controller, wherein the customer orders as received are sequentially displayed on a display device of the kitchen video controller. Upon completion of preparation for a customer order by a person in charge, the display of that customer order on the display device of the kitchen video controller is erased by manipulating a control switch. A time length between the reception of the customer order and the erasure thereof is measured and stored as service time data in the kitchen video controller 12. The register terminal totalizes the service time data transmitted from the kitchen video controller 12 to issue a management report.

Abstract: A first cash register operating in a registration mode is connected by a communication line to a second cash register operating in a calculation mode to serve customers forming a waiting line extending from the first cash register to the second. Sales data are registered by the first cash register, with the data of an earliest one of the customers being displayed on a first display unit and the sales data of all the customers being stored sequentially into respective second storage areas when a communication line is busy. When the line becomes available, the sales data are transmitted to the second cash register from the second storage areas sequentially. The second cash register stores the transmitted sales data into third and fourth storage areas in succession and provides a simultaneous display of the sales data stored in the fourth storage areas on respective window areas of a second display unit.