You have graduated from college and decided to purchase and operate a Macaroni and Cheese Food Truck, a rage in your town. You would accept cash and credit card payments, which would be handled primarily by your assistants. You also plan to offer unique dishes and specials to differentiate yourself from competitors. You are trying to launch the business with minimal investment. Your sister has recently graduated with an MBA in Accounting and argues that you must minimally invest in a Point of Sale system. Identify advantages and disadvantages of investing in a POS system as part of this new business venture