Patent ID: 6978251

Claim:
A POS registering system, comprising: a menu having a plurality of menu keys and at least one selection key, each of the menu keys configured to allow selection of a group of sales items before displaying sales item data, each of the selection keys being used to select one of the sales items in the group before displaying sales item data; a table containing entries of sales item data of the sales items assigned to each of the menu keys, said sales item data including a name and price of each sales item; and a display device; wherein when a first operation including a selecting a menu key and a selection key is performed for designating a sales item on said menu, entries of sales item data of all sales items assigned to the selected menu key are retrieved from said table and all the retrieved entries of sales item data are displayed on said display device in such a manner that the entry of sales item data of the designated sales item designated by the operated selection key is distinguished from entries of sales item data of correction alternative sales items, said correction alternative sales items being sales items which are assigned to the selected menu key other than the designated sales item; and wherein when a second operation is performed for selecting one of the entries of sales item data of the correction alternative sales items displayed on said display device, the selected entry is treated as an entry to be processed.