Computer controlled reckoning or cashing up system whereby data from the display on a central reckoning or cash till unit can be displayed on a portable input device

摘要

The system (100) includes a central reckoning or till unit (10) which has a display (12) for displaying relevant data and information such as menu buttons, product selection buttons and the like. It also has at least one decentral, external and/or portable input unit (20) with a display (22). The relevant data available on the central display can be reproduced on the display of the decentral input unit(s).