"I would like to order one-piece burger meal with an upgraded soft drink!" This is what you commonly hear in fastfood counters, where smiling sales attendants type in each of your orders in a computer, which will then display the amount you have to pay for such an order. This computer, with that mini-screen to show your order's total payment, is called POS System. It's an acronym for point of sale, a kind of system that simplifies the hassles of making an order, processing it, and delivering it.
Among the things that the POS System do is the inventory control, and this is where the simplification is mostly appreciated. An inventory is the record of the supplies available for the day in a particular store, and this record needs to be controlled, or properly accounted for.
In a fast food store, they have varied kinds of foods for sale. Their products need to have inventory control, so that the business owner may know which particular food has been frequently requested by the customers, and which products still need further advertisement of.
Inventory control is important in a food chain store because they need to have a regular update of their supplies, so that they can better serve their regular customers. If there will be no proper updated inventory, chances are, they would not have any idea if ever their burger patties have all been used up, or that their spaghetti meal can't accommodate four eaters anymore, for example. It goes on saying that the POS System in a fast food chain is therefore an indispensable tool.