This addendum is now in the article: > CP/M actually didn't do these special names as simply as I described them, which is a fact I either never learned or had

This addendum is now in the article: > CP/M actually didn't do these special names as simply as I described them, which is a fact I either never learned or had since forgot. > It actually required them to be followed by a colon, as if they were a drive name. > So PRN: is the printer, PRN is not.