The recent question about Point of Sale devices is the focus of this discussion.
Point of sale devices are a combination of hardware (terminals, barcode scanners, printers, etc) and software (the "stuff" that runs on the terminals). While the hardware is important, the software is equally, if not more important.
It is the software that handles the transactions and the "user experience" of the device.
Are such questions that rely on the software as much as the hardware on topic?
Disclaimer: I did add an answer to the question