I'm curious. Is this common in the US for terminals to operate that way? In Russia, POS terminals are connected to cash registers, and only initialize after th

I'm curious. Is this common in the US for terminals to operate that way? In Russia, POS terminals are connected to cash registers, and only initialize after the items are registered - I think I never ever saw them active prior to the final cost display. Only then you can swipe (or insert) the card. Probably that's just a local specifics, so I'm interested in learning how this works in other countries.