Point-of sale (POS) systems, namely, handheld computing devices, handheld data entry devices, handheld tableside tablets, POS terminals, wireless computing devices; non-downloadable software to take orders and payment; POS terminals; POS terminals for making contactless payments; protective covers and cases for tablet computers; chargers for smartphones and tablet computers; covers and cases for smartphones and table computers to enable use of smartphones and tablet computers as POS systems; adaptors for smartphones and table computers to enable use of smartphones and tablet computers as POS systems; stands adapted for tablet computers; checkout stands for retail stores in the nature of electronic checkout stations for POS; customer self-service electronic checkout stations for POS; electronic (POS) systems comprised primarily of POS terminals, bar code readers, touchscreen monitors, keyboards, document printers, scanners, and recorded operating software; electronic device to charge and secure tablet PCs