Computer and internet are useful as well as powerful. Information about health and safe usage of computer and internet, especially for children, should be owned by each family. Computer connected to internet is powerful way to socialize with others. It can be good but also bad effect. Recently we hear a lot of children get the advantage of social networking sites but we often see the news about the disadvantage of it for children. Safety of computer and internet usage should continue to be campaigned.
The role of parent is assisting and directing children in using computer is very necessary. Installation of software monitor such as key logger which has function to watch and note all activities relating to keyboard usage is helpful but not enough to protect children from potential harms. They see that all of that all of them have done are their privacy and no one may know.
We can not prevent children from using computer because it is multifuctional. However, many parents worry about what their kids do in front of the computer, whether they are doing homework or even just playing games. Or spending all time to surf the internet which is the materials do not fit with his age. There is a tendency, especially teenagers, want to become acquainted with many strangers out side. The lack parental supervision of children's activities is likely to pose a potential danger of them.
In short, considering the negative effect that may emerge, parental monitor against the use of computers needs to be done from time to time.