an electronic device that reads data stored on a credit card, a card that shows that somebody is a member of an organization, etc. （读取信用卡、会员卡等数据的）读卡机，读卡器 a credit card reader 信用卡读卡器
an electronic device that you can attach to or that is part of a computer, printer, etc. and that reads or transfers data from a memory device （计算机、打印机等的）卡片读入机，读卡器