What is the little machine called that one slides one’s credit card through it when one wants to pay. And which verb do you use when you do this act? Is it called a “printer” the part that prints out the receipt? Or has it a specific name in this case. What is it called when one hands ones credit card to the shop keeper for instance and then have to sign the receipt and what is it called when one just uses the machine and enter one’s PIN code? What is the old machine called that used to be used (it rarely still is) that makes a carbon copy of the credit card surface by placing it inside and sliding a part over it. I would appreciate if you could provide a wider glossary of credit card usage please.