Hello all! I having been looking into computercraft and - knowing nothing about programing - have found it daunting. I went to the computercraft forums but couldnt find what I was looking for, I was hoping to find a program which means that the insertion of a floppy disk will open a door for a period of time. Obviously, not just any floppy should be able to do this only one of the ones I hand out - like a key card. Now, there is no point having this if people can just come along and edit it, so is there also another program I can run to prevent people accessing the computer? Thank you in advance.