computer

I would like to talk about an amazing achievement that was invented by the humans. Computer technology has helped many people to contact each other over long distances.So I have strongly feel that nobody in the world can live without a computer. Nowadays the whole world is closely linked by commercial networks. Even though there are some problems it does cost alot, but companes, hospitals and all the public sectors can not be with out it. How many crimes were detected by computer . eventually diagnosed as apart from the family ??