Comment by ErroneousBosh

For a long time all the IBM ATMs ran OS/2 Warp 4.

I recently saw that running on special 16 channel DAT recorders used by the 999 service, recently as in "within the past five years". I believe they've been retired but kept around in case they need to recover tapes off them.

I kept my mouth ABSOLUTELY FUCKING SHUT about knowing my way round OS/2 Warp 4.