Computers are incredible machines. Do you even realize your life without computers now? I don"t. In these days everything is computerized, even lights or roller blinds. People use smartphones which are cell phones and small computers in one. You may say that these devices easily addicts users, but everything can be dangerous, some are addicted to coffee. There are many pros and cons of using computers. For example, my cousin Joe is a computer maniac. He can create applications, networks and other things that are out of scope for a random person. Joe runs a shop with rack accessories. He is the only specialist in town who provides professional overlocking cases and additional devices. His clients are mostly gamers who spent all the life in front of computer and play various games like shooters or massive multiplayer online role-playing games. These guys are crazy, they spend 3 or 4 hundreds dollars just to buy some rack accessories, in order to upgrade the look of the machine. It is unbelievable for me but if someone is interested in it, I cannot say anything. We all have our own lives and every particular person has his or her own hobby which costs more or less money. What do you think about it?