I was working in a UK supermarket when we had self-service checkouts installed in 2005 or 2006. The NCR kiosks were running a version of Windows XP. The self-se

I was working in a UK supermarket when we had self-service checkouts installed in 2005 or 2006. The NCR kiosks were running a version of Windows XP. The self-service UI was a facade where behind the scenes it was just running the traditional checkout program, which on cashier checkouts ran on Windows NT. I guess the self-service UI emulated a keyboard and translated the actions that way. At the time we definitely did have to reboot devices regularly.