Science and technology

Nowadays science and technologies take very important part in people life. Now we could not imagine our life without computer, mobile phone, TV, radio. In addition, computer and mobile phone have the biggest infuence to our daily life. And according to the statistic almost every family in our country have computer or mobile phone at home.
In fact, phone was invented in 1876 by Bell and after that it became very popular and useful as a tool of communication. For example, now we do not write letters to our relatives abroad and wait thier answers for some weeks.So, now we can just call them and to know all news. Sure, phone is very useful and comfortable for bussiness. It is easy make bussiness contacts and earn money just talking with phone. In fact, among students and schoolchildren is very popular write sms messages because it is quite cheap and students can exchange oppinios and information very quickly. So, we can see that computer is one of the fastest tool of communication.
But on the other hand there are some disadvantages of mobile phone. It is substantiated that phone radiating wawes which are harmful for our health. And sometimes it can cause diseases such as brain cancer or heart desease.
So, how we could not imagine our life without mobile phone, we could not imagine it without computer either. In fact, nowadays computers manage all the world and in every step we collide with computers. Computers are very popular at present. In addition, if we have computer, we want to have accpet to the Internet either. Because...

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