Using a POS swipe machine is very easy. You can use the debit card in a POS machine in many ways like swipe, insert or tap. It also depends on what type of features the POS machine includes and the card you are using. The card machines with MSR feature can accept magstripe cards and read the information when swiped through the magstripe section on a POS machine. The card machine with the EMV feature can process a transaction when you insert the card into the EMV chip reader part of the POS machine. Also, the devices which come with the NFC tap feature can accept contactless payments with just a tap.