Scientific studies and observations by psychologists show that children are spending more and more time on the computer. Computer games are their most frequent entertainment choice. For many children they have also become the only source of entertainment. A large group of parents see nothing wrong with their children spending whole afternoons at home staring at a computer screen. What they don't realise is that computer games have both a positive effect on a child's mental and emotional development, but also a negative one. Two camps have now emerged: those in favour of and those against computer games for children.