All your banking is done using a VM running on a computer, often emulating another VM which in turn is running something written way back then to run on a specific model of IBM mainframe. All the fancy stuff is simply doing screen scraping of this internal system.
You will be surprised at now many companies still are using software designed to run on Netware 3.x, and run it in an emulated machine on a server, connecting via terminal clients to this golden machine. Scary thing is I was looking at the mass marketer, where they still have dot matrix printers for sale, new ones, not old stock, with parallel interfaces and USB. They are more expensive than around half the low end laser printers, even the colour ones. I still use them at work, as it does do a copy of every form for free, and you cannot say there was a print error on the second one. ribbons however are more than laser refills, the reinker industry died a while ago, which I used as the reink cost was very low.