What Are Some Tech Questions You're Too Afraid to Ask?

I had an idea for a series of articles on concepts that people in tech assume are common knowledge but actually aren't. For me, this would include ideas like "what is Kubernetes?" and "what is a framework?" Hell, I just saw Kyle bravely mention that he had no idea what Vim is:

So, I think it's safe to say any question is on the table. Fire away!