The most common machines are probably those that we see every day in supermarkets
. It not only weighs the goods, they also print out a ticket with the weight, cost per kilo or pound, and finished price of what we have put in the bag. This is also linked to the computer system so that the store buyer knows when to order more goods for the shelves. This is particularly handy for fresh goods and makes sure that nothing is put out to perish if it can stay in the cold store longer.