What is the diffrence between a computer virus and a worm
Is there anything more similar to them?
the word "virus" is the generic term for worm, viruses and trojans.
viruses try to contaminate as much files as possible on a system. They don't really distribute themselves over the internet.
Worms do that. They try to contaminate as computers as possible in a network. You see that "worm" is a rather new word :-)
What do you mean by trojans?
Separate names with a comma.