What are digital credit card payment systems?

Digital credit card payment systems are ways in which you can purchase goods using different electronic devices in a secure way. Such devices that allow credit card payments for purchase are smart phone technology equipped to scan a reader - this is called near field communication, or an eWallet - an internet account which allows to efficiently pay for purchases online, while your details are secure. You can even use a credit card in McDonald's without putting in your pin code nowadays with near field communication technology.