Computer

When it comes to the most revolutionary invention,the computer is fully deserved. It changes the way we live,shorten the distance and even helps do the research. Almost one third of our life can't do without computers.

What the most common thing does people do on the computer? Of course,talking! Nowadays,the're MSN,talking rooms and skype...etc. The distance between people has been removed,so we can talk everywhere. With the technology has been progress,we may even use microphone and video camera. Those businessmen earn profits most,because they don't need to spend time and money on transpotation but still can see around.The computer absolutely change our lives.People use them to handle out the documents,search for information and do shopping on the internet. Furthermore,we may see them in train stations,hospitals and schools.They have been combined with people's life so tight that I can't imagine what if they dissapear.Maybe just like the primitive men.

Its contribution to technology development is conspicuous. They let the computers do the most complicated jobs such like calculation and analysis. This will help people save lots of time and money. Besides,the robert maybe has made a breakthrough. They not merely use them on experiments.Being a houseworker is going to be popular because computers can do more delicate movement.

Are all the things about computer is good? I don't think so. Those people who sit too long in front of the screen may have muscle aches and pains. The radiation from the computer is harmful to our eyes and body,even cause cancer. Except health problem,some people's social skill get lost. They just stay home with their computers because the internet is so convenient that they can get the necessaries without going outside. People become unconcerned and aloof is the worst result.

Although the disaventages of computers do exist,they still do us a lot. In the future,they will occupy more parts in our life. So,what is the most significant thing? Use it well. Remember they are just machines and can't substitute for human beings.