Viruses

" computer Virus" - this is a phrase coined from biology to describe a piece of sodtware that behaves very much like a real virus (only it spreads from computer to computer rather than person to person!)
Viruses can be prevented by: Using anti-virus software to scan your system daily or weekly, not allowing people to load applications on your system, using special filtering software to prevent downloads of computer programs and not opening suspicious emial or attachments.
Viruses can be spread through files which can be sent through e-mails or by other means, you can