Computers are, in my opinion the artifacts that have made our lives more artifficial than any other thing, the number of tasks that we used to do in real life, and now we do by using computers is increasing every day.
Nowadays more and more activities are done by using computers: shopping, sending messages, writing, reading, listening to music, watching TV or movies are only a few examples of things we used to do without the need of a computer. But the most curious example in my opinion, is social networking , this invention has made our lives extremely artifficial, to the point that people no longer call or meet with their friends to know what's going on in their lives.
They just go to their profiles and that's apparently enough to find out how they are doing. I believe social networking is a great tool to help people who are in distant locations keep in touch, but for people or friends who live really close to each other, let's say in the same city, it creates the opposite effect they don't call each other anymore, sometimes they don't hang out as often, they have almost become "virtual friends".