A POS (point of sale) system can help you organize your restaurant, from inventory to bookkeeping. Investing in a POS systems can save you money in many areas. However, restaurant POS systems do require a lot of maintenance and are subject to crashing, like any computer program. Many smaller restaurants don't really need a POS system, especially if they don't accept credit cards. Read on to find out if a POS system is right for your restaurant.