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Today, mobile phone role in human life can hardly be overestimated. With this compact device at any time we can get in touch with their relatives and friends, colleagues, to learn interesting information we have. You do not have to strain your memory and remember the phone an old friend, who no longer recruited, notebook mobile phone is always at hand. Many in addition to contacts stored in the phone is still a lot of other information - write down their ideas and thoughts, credit card numbers, anniversaries, various files, etc. That is, the phone replaces us right notebook and flash-drive. And all sorts of useful software features, options which are equipped with modern cell phones do a small-sized multi-function device so that sometimes you wonder.

English : Dolphins-aquatic mammals of the suborder toothed whales. Dolphins, like all cetaceans, breathe air periodically floated to the surface. Feed mainly on fish and squid, although some prefer the shrimp and other crustaceans, and killer whales also eat sea turtles, aquatic mammals and birds. The majority of dolphins, males are larger than females and in some species are distinguished from them by higher dorsal fin. Known individuals under the age of 50 years, although in most species the maximum life expectancy of 20-25 years.
Перевод на русский : Дельфины-водные млекопитающие подотряда зубаcтых китов. Дельфины, как все китообразные, дышат воздухом, периодически всплывать на поверхность. Питаются в основном рыбой и кальмарами, хотя некоторые предпочитают креветок и других ракообразных, а косатки поедают также морских черепах, водных млекопитающих и птиц. У большинства дельфинов самцы крупнее самок и у некоторых видов отличаются от них более высоким спинным плавником. Известны особи в возрасте до 50 лет, хотя у большинства видов максимальная продолжительность жизни 20-25 лет.

I asked the question: "Can modern man survive without information technologies?" Let's try to understand.
Let's start with the fact that the modern world is literally forcing people to use any gadgets whether it's phone to contact people, or Navigator to navigate the terrain, or is it the electronic book, which is much more practical than paper.
Secondly gadgets just help people to pass the time. Imagine you would do if there was no MP3 players, electronic books and games on the phone. How would pass your leisure time, for example when you are waiting in queue on reception to the doctor or riding the bus. 
On the other hand, people are abusing the availability of the Internet or any gadgets and a place to clean the house, do homework, read books, all day they lie on the couch and hang out on the Internet without submitting them doing anything useful. As a result, people lose friends, work, score study. This is the negative side of the dependence.
In conclusion, I can say that the arrival of information technologies in our life plays a more positive impact than negative. Availability helps us to grow. I think people just have to learn to use new technologies for the benefit of himself.