POS systems like the one shown in Figure 9.6 are used extensively in grocery stores,
department stores, and other types of retail organizations. In this example, only cash,
checks, and bank credit card sales are valid. The organization maintains no customer accounts
receivable and inventory is kept on the store’s shelves, not in a separate warehouse.
The customers personally pick the items they wish to buy and carry them to the
checkout location, where the transaction begins.