As this question is placed in XP i should also mention all XP support end April 2014.
A case protects a computer when it is dropped.
it protects the inside of the computer and outside
It protects your computer from any viruses.
A transistor
protects your computer from malicious software that could cause distruction of computer
protects your computer
it protects your computer from virus's
green plants
a computer virus program like" Fire fox", will protect a computer against a virus.
It guards, and protects your computer screen from scratches.
it protects your computer and you will not get any vireses and you will not worry about b uying another computer again
antivirus is som ething which protects your computer from geeting virus in it