SCIENTIFIC DISCOVERIES ~Invention of the mobile phone~ - презентация

1 SCIENTIFIC DISCOVERIES ~Invention of the mobile phone~

2 THE FIRST CELL PHONES

3 FIRST CALL April 3, 1973's head of mobile communications Motorola Martin Cooper, walking in the middle of Manhattan, I decided to call on a cellular phone. Passers- by were very surprised and did not understand what was happening: before the advent of commercial mobile telephony was still 10 years old.

4 DYNATAC 8000X6 March 1983 was released the world's first commercial portable cell phone. On this day, Motorola introduced the DynaTAC 8000X phone - the result of 15 years of development, on which it spent more than $100 million. the Phone weighed 794 grams and has dimensions of 33 x 4,4 x 8,9 cm battery Charge of the first cell phone with led display was enough for 8 hours of standby or hours of talk. The phone was first certified for commercial use by the Federal communications Commission. Retail new was worth a fabulous price - $ However, according to representatives of Motorola, even despite the high price, the idea of being always enthused users that queued to buy DynaTAC 8000X was recorded thousands of Americans.

5 Martin Cooper DynaTAC 8000X6

6 ROAD SERVISE Until the early 1960s, many companies refused to do research in the field of cellular communication, as came to the conclusion that, in principle, impossible to create a compact cell phone. They also stopped the experience AT&T, which in 1947 created a system of "road service" - she offered a cordless phones business and drivers constantly travelled between new York and Boston. After five years this service was closed for lack of customers. Network radio phones were created in several cities in the U.S., but in most cases they have not achieved appreciable commercial success.

7 MOTOROLA Motorola was the first mass production of mobile phones and for a long time has become a trendsetter in the world of wireless telephony. The success of cell phones was stunning. The phone company could not provide phones for everyone, because their opportunities were limited by insufficient number of frequencies, the capacity of a PBX and a low number of cell transmitters. For example, the company Bell System, created the cell phone model, six months later, Motorola in 1978 in new York were 545 customers, and 3.7 thousand were standing in line to buy. Across the United States in the queues to purchase were 20 thousand customers of the Bell System, they were informed that the waiting period may take 5-10 years.

8 MOTOROLA 9800X

9 However, in 1983, there were 1 million subscribers in million the Proliferation of cellular technology has made this service increasingly cheap, high quality and affordable. Today,more than 90% of the world`s population use mobile phones

10 Modern phones just phones smartphones PPC

11 MODERN PHONES

12 iPhone 6s Just starting to use the iPhone 6s, you will immediately feel how things have changed. Look at the iPhone 6s closer and you will see innovation at all levels.

13 Microsoft Lumia 950 dual SIM card Advanced features, great design and excellent support for Windows 10 use smartphone that works like a PC, and turn an ordinary moment into his greatest achievement.

14 Bigger than a smartphone Samsung Galaxy S7 will open up a world of technologically advanced things such as: virtual reality glasses Samsung VR Gear, camera Gear 360 and smart watches Samsung Gear S2. The ecosystem of compatible devices, created to give you an unforgettable experience.

15 THANK YOU FOR ATTENTION