The de-funct "Sys Rq" key?

Question

Hey all,
Most of you tech nerds will know that the "Sys Rq" key, or System Request, was originally designed for the abandoned MS-DOS 7 project. As you know, DOS 7 never came out, yet the Sys Rq key remained for some reason. My question is this: Does anybody know what the Sys Rq key was supposed to do in DOS 7 exactly? And does anybody know if any modern programs use it for anything at all? And do you personally feel that it should be removed, or keeped for the sake of tradition?

This is a personal question, and also the "Next Great Nerd Question" of the day lol.

Answer 1

Some terminal emulators use it. It acts as a replacement for the compose key (but I never found a use for that key...)

Ubuntu uses it for saving a screenshot! I would bet other Linux versions use it too.

I thought Dos7 came out under Win95 or Win98... the OS reported itself as Dos7. And I'm fairly sure that my DOS 5 / win3.1 computer had it as a key.