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Вы можете ознакомиться и скачать Mobile communications Zvezda Sergey. Презентация содержит 13 слайдов. Презентации для любого класса можно скачать бесплатно. Если материал и наш сайт презентаций Вам понравились – поделитесь им с друзьями с помощью социальных кнопок и добавьте в закладки в своем браузере.

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Mobile communications Zvezda Sergey

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The phone like modern thing Why does person need mobile phone? There are different answers. But hardly somebody could say that phone needs for individuality and self-esteem. In some societies mobiles are used like the part of image (for example watches and cars). “Show me your phone and I will say who are you”-this phrase soon can be said like this. In the end of 80-s when the mobile phones were appeared their functions was evaluated. The outward appearance did no play any role. The idea of creating phones which underlines the individuality appeared on the grounds of passion melodies. ”Stars” and young generation are the most popular users of it. There are also people who think that mobiles need only for calling.

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The idea of new type of communication The AT&T Labs created the idea of mobile communication in 1946. This firm made the first radiophone service in the world-it was connecting of transmitter and phone-with the help of radio station which is set in a car, you can make a call to ATS and it will be a usual call.

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Nokia: connecting people On the 21 of September in 2006, Japan firm “Nokia” sold 1 milliard phones. AT all “Nokia” made 400 models of phones. The first model with display was created in 1994, “Nokia” 2100.

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My dream For me the best phone is Nokia N95.It has all that man can dream: camera, FM, Bluetooth, Mini-CD and MP3 player.

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The first Motorola The first phone was called Dyna-Tac. The weight of it was 1.15 kg and the size 22.5х12.5х3.75 sm. On the panel there were 12 push-buttons, 10 of them were figures and 2 for sending and stopping the call. There were no display and no functions at all. You could speak 35 minutes but than you had to recharge the batteries for 10 hours.

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The spoilage of mobile phones. 5 from 100 buyers of modern mobile phones have to solve the problem of repair their phones during the first year after purchase. As Mobile Research informed the largest volume of spoilage among all the producers is LG Electronics. The second place belong to Maxon. У Nokia, Siemens, Samsung, Motorola и Philips -3 %.