What is the difference between an online ordering system open source and a self service kiosk?

The difference between an online ordering system open source and a self service kiosk is that the open source one is a software that can be downloaded and installed on any operating system. It comes with an online ordering interface, payment gateways, and order management. The self service kiosk on the other hand is usually installed at a physical location such as a restaurant or supermarket and accepts physical money.