Keep in mind walmart largest retailer in the country is still today using IBM checkout systems. Why? because K.I.S.S
And after three weeks of working perfectly, my chip-enabled Visa card has become a frenzy of swipe/cancel/override/retry activity forced on the harried casher, cursing under their breath as the line behind me grows.
Every time I ask is it my card that is damaged, as the terminal screen insists, and every time they say no, while pointing at the card reader with a withering look that could kill.
Perhaps a little too stupid simple.