United States POS Payment Market Assessment, By Component [Hardware, Software, Integrated POS Payments], By Terminal Type [Fixed POS, Mobile POS, Pocket POS, POS GPS / GPRS], By Operating System [Windows/Linux, Android, iOS], By End-user [Retail, Travel and Hospitality, BFSI, Media and Entertainment, Manufacturing, Healthcare and Others], By Region, Opportunities and Forecast, 2017-2031F