So you tell friends your computer has been infected with a virus, a term that most of us use to describe any sort of invasion. Then they say to you, "I think you'll find that's a worm" (a clever clogs eh?!). Then someone else chips in with, "Hmm, well it is sounds like a Trojan to me".

You'll maybe think one of three things:

1. "Who cares? I just want rid of whatever it is!"
2. "What's the difference anyway"
3. Both of those thoughts joined together

For those who wonder what the differences are, I came across a description of how each type does it's foul deed. Read how viruses can sometimes be a mixture of all three categories. Impress your friends by knowing about the finer points!