There are different types of POS terminal. However, most business owners prefer to sue the portable ones. The portable POS terminals allow the business owner to accept credit card transactions anywhere he is. A mobile terminal can be in the form of a cell phone. And as we all know, millions of people nowadays are using smart phones to communicate or to surf the internet. Hence, it saves business owners from buying expensive POS terminal or from leasing those credit card terminals form their merchant account provider. A smart phone that is connected to the internet with the proper application can process credit card transactions with ease. It can even be connected to a portable swiper for added security. A portable printer could also be connected to the phone so as to provide the customer with the actual receipt as proof of transaction. In addition to this, smart phone that serves as credit card terminal could also store credit card information that can later be sent if there is no available internet connection.