I know RPG did that. I can't tell you if all programs do that, probably not today, but that was the origin. Keep in mind that at the time, all your data was on tape, punch cards or disk, you only had a few kb of RAM.
IBM still churns out new releases of the programming language, where they keep tacking on support for all the things programmers of today want to do.
IBM still churns out new releases of the programming language, where they keep tacking on support for all the things programmers of today want to do.