Description Computer security people basically protect computers, networks, etc. from hackers, viruses, and more. Until about 2 or 3 years ago, computer security wasn't needed very much. Then things like the Melissa virus, the Microsoft break-in made people realize that they needed securi...

What a Common Cold is? A common cold is an illness caused by a viruse Infection located in the nose.Colds are also involved in the sinuses,ears,and the bronchial tubes. what causes it? the common cold is caused by any of a number of virusesthat can involve the upper repiratory tract.As your bod...