Abstract: A data processing system is provided for determining specific digital content for displaying on a restaurant table top display unit corresponding to a specific time point of a consumption cycle. In particular, the said data processing system is provided for recording inputs and their associated time stamps from a table top unit, reading a current time from a digital clock, performing calculations on the said inputs, time stamps, and the current time, based on a predetermined algorithm, producing a calculated index; storing a plural of digital contents tagged with tagging indexes; selecting specific digital content with its associated tagging index matching said calculated index for displaying on a signage unit.