POS systems are dedicated computer terminals or handheld devices that let retailers or businesses to integrate their sales to customers and consumers.For restaurants, noting down the orders of customers is extremely important.With a POS, restaurants are able to connect up and down their supply chain.POS offer other advantages too, such as integrating the food store and predicting sales.The POS systems also allow managers to keep in check the cash, sales flows, employees, and customer data.Today, there are a number of different POS systems available for restaurants.TouchBistro, Upserve, Toast, Cake POS, and Shopkeep are some of the best restaurant POS systems.TouchBistro is a flexible system that allows for various options for $69 per month.Upserve software and computers integrate all types of working and data for $99 per location.Toast is a cloud-based POS that also gives an option of using the system on a handheld device for $89 per month.