With the develop of modern technology,computer is widely used in my life.With the help of computer I can learn of anything in the world.With computer's help I can work easily,so I have more free time thanbefore,and I can talk with my friends online.I don't need to buy books,because I can read books online.I can buy things online.So since I have the computer I only need to sit in my room and I can know anything on the earth