Computer is a technology that is in almost every home. It is helper in the life of every person. The computer provides us with any information and we learn a lot, as in the books. The positive impact: The information you need is always there. E-books, many educational applications and much more. Negative impact: Dependency, bad websites, viruses, computer also spoils eyesight. You need to follow the rules. For example, do not look at the monitor for a long time, sit at least an hour a day. In my opinion, a computer is a useful invention of mankind.
