The previous post in this series was about learning the basics of the COBOL programming language. Now I will cover a very important and essential part of COBOL - File Input / Output (I/O). I find it really interesting, as I haven't seen any other language which makes it that easy to read...

Learning a new programming language and specially a really really old and obscure one is hard. This is especially true with COBOL since most documentation is extremely old, outdated and there are essentially no other users. This means just searching for your problem on any arbitrary search...