Hardware and software for processing credit card, debit card, and gift card transactions via mobile devices; Electronic equipment for point-of-sales (POS) systems, namely, point-of-sale terminals, bar code readers, optical readers, advertisement display monitors, keyboards, printers, scanners, radio transmitters, radio receivers, computer hardware, and computer operating software; checkstands for retail stores in the nature of electronic checkout stations for point of sale; Customer self serv...