Most of my company's clients have code from 1997 still in production, and at least a third have code from 1987 still in production. A few have code from 1977 st

Most of my company's clients have code from 1997 still in production, and at least a third have code from 1987 still in production. A few have code from 1977 still in production. I'll give you one guess what sector :D