Well... This one is a bit silly, but why not trying to answer every question, even if this question has an obvious answer?
Today's silly question is : Is my computer on?
The obvious answer is, of course, yes, it is. But... are you sure? If not, go to ismycomputeron.com, and read the tiny word on the top of the page:
That's right. Your computer on. You can go and work with it.