I think this is an interesting topic when I am indeliberate in surfing some webs. And I wonder why no one discusses this????. So, I am eager to make the first writing. Nowadays, most people know to use a computer. But what purposes they use it for ?. that's why we really recognize that it is so bad or good to use a computer. You know, up to the ages, we classify the benefits of computer are. People who work in big companies are required to know how to use the computer to manage the project or only composing the contract, saving the database, even making important data security for the firm. A great benefit that a computer certainly works effectively and has replaced thousands of people to solve complex tasks by only one person or group. That saves much money and time and even worker's strength. And the computer is an intelligent device for students to study, especially IT students. They can search for documents that are related to their curriculum or any information they are interested in their life on the internet if that computer has a global network. On the other hand, most the people who are tired after sitting with a computer for work a long time in the day, may relax their mind with many kinds of games they want, listen to music, study English and so on...In a word, the computer is the best device for everyone for many various purposes. However, some people use computers for bad ideas. It is nothing to use for children who are crazy about games day by day. That makes children don't continue to study and their marks are gradually lower and lower. Furthermore, it is easy to attract crazy children and students with a depraved culture. In my opinion, our government is forbidding strictly behaviors uploading badly depraved things on the internet. And certainly have to advise children and their parent to avoid putting bad those in their computer. I strongly disagree with people who make children go down in our developing country who will be the main leader of our country in the future. Thanks for your reading and be glad to see your writing on this topic.Thanks...thanks.