Each piece of hardware had a role.
Graphic order terminal: This was a handheld device with a wide-screen graphic display, used by the store owner/manager to place orders. The items were recorded and brought up in the order in which they were arranged on the shelves. The store manager/owner walked down the aisles and placed orders by item. When placing an order, the store manager had access (from the store computer) to detailed analysis of POS data related to the particular item.