I wonder if these systems are airgapped (or perimeter around the local restaurant). If the menu doesn’t change very often, there’s a good chance that could be a

I wonder if these systems are airgapped (or perimeter around the local restaurant). If the menu doesn’t change very often, there’s a good chance that could be and the payment terminal does all the work itself. In which case it would not be much different to an ATM or POS running OS/2 Warp.