I did some work at the #3 retail grocer in the world and they have an improbable amount of cobol and cobol-apps running as of 2007. Some of these were running o

I did some work at the #3 retail grocer in the world and they have an improbable amount of cobol and cobol-apps running as of 2007. Some of these were running on old IBM mainframes from the 80s and perhaps even 70s, including some exciting IMS databases.