Since computers were invented in the USA in the 1950s, they have   very. Important in many areas of work and leisure. There is no doubt that computers are very  in the technology and business. In space, computers have been used to control the speed and direction of a spaceship. With the help of computers, doctors can find diseases easily and  other problems. For example, tiny computers which are inside  bodies can keep hearts beating normally.  In factories, robots are  by computers that are like human brains. They can do work that is  to humans. In business, computers are used to place and cancel orders. They are also making the workplace  and better.

    Since the lnternet came into being, people's at home have been changed, too. More and more people have personal computers that are used to play games and watch movies. Thanks to the Interact, people can do shopping and do business at home. Instead of  letters on paper, people communicate by sending e-mails and chatting online. The whole world is connected. The Internet is making the world smaller, like a village.