Mine was working at a radio station. We had all the music on a database that would rotate the playlist. This was late 70’s early 80’s with good ole green monochrome screens. Later on we had amber colored. The hard disk platters were the size of large pizzas. And remember kids this was all text only. Of course the station also did billing & payroll on the system. WISE AM Asheville,NC was the station. In 1972 we did have a class in punch cards at a technical school if that counts :-)