[throwawayboise]

OS/2 was really only ever used in IBM shops: big enterprises that bought all their IT infrastructure, from Mainframes to network technology to printers to desktops from IBM.

OS/2 was never really successful outside of that domain.

[tadfisher]

It was also huge in the embedded space, e.g. ATMs, various kiosks, and POS terminals. I regularly encounter ATMs running some ancient version of Warp.