I worked in a Sears store from 2008-2010, somewhere around 2009 I think our store got upgraded from a literal mainframe terminal to a virtualized mainframe term

I worked in a Sears store from 2008-2010, somewhere around 2009 I think our store got upgraded from a literal mainframe terminal to a virtualized mainframe terminal for inventory management. The box managing the registers ran OS/2 Warp.