I use this image as my background desktop because I like simple backgrounds and I find this somewhat amusing. I've seen other backgrounds of a relationship between programmers and coffee, but this struck out to me, as it seems that coffee is payment for writing code. Also, Garfield (or at least resembles him) is pretty lazy, and it makes me think of programmers staying up late at night to do their thing.
"C++" is a programming language that can be used to make programs. I've dabbled in it a bit also.