The one on the far left is called "One time I was eating a good sandwich. It was turkey on wheat. And then I thought, "Hey, this is a good sandwich". And then I fell asleep." It contains miscellaneous stuff that isn't music, pictures, downloads, homework, or games. The only reason it's at the far left is because its original spot was on top of Chris's dialogue balloon.
The other one explains itself. "This folder prevents the hard drive from appearing here". For some very odd reason the Hard Drive folder (it's the Mac equivalent of "My Computer" for those unfamiliar with Mac terminology, lawl) would appear there every time the computer is booted up. I do not like it there, I want it in line with the rest of the folders on the right side of the screen. Unfortunately it isn't very effective, as the Hard Drive folder now appears at the bottom of the line every time I start up. I think I made a folder invisible and placed it there one day, which is why the Hard Drive does not seem to want to be where I want it to be.
Unfortunately, I've forgotten how to make invisible folders visible again with the commands I've used in the computer's terminal.