I'm looking for some historic info about the null device. Why was it called
/dev/null instead of (for example)
FreeBSD's manual page states that "A null device appeared in Version 7 AT&T UNIX" but I can't find any reference or hint about why that name was originally chosen.
If it turns out that the name was originally used in a more ancient OS, I'd like to know how the original device worked and why that name was chosen.