Do You Know The History Of Mobile Phone ?

I would like to share about the history of mobile phone. I think that almost everyone in this world are using mobile phone. But do you know the history of mobile phone?

The first mobile phone was created June 17, 1946 in St. Louis, Missouri, United States car using mobile Service.This Bell in 1956 as the first automatic telephone system in the world. Mobile Auto (MTA) MTA phone in Sweden consists of vacuum tubes and relays, and weighs 88.2 pounds (40 kg).

Martin Cooper, Motorola and executive staff led the team that developed the first mobile phone to be used in mobile phones, portable. network.Using. Cooper made the first call on a mobile phone which is quite heavy on April 3, 1973, the rival, Dr. Joel S. Engel Bell Labs him.

As I walk down the street while talking on the phone, sophisticated New York to open his mouth at the sight of someone actually moving in a telephone conversation. Remember that in 1973, no cordless phones or cell phones. I have a lot of calls, including one where I crossed the street while talking on a radio reporter in New York - perhaps one of the most dangerous things I have ever done in my life.

-----------Martin Cooper-------------

Creations sell for $ 3,995 and weighed two pounds, which led to the nickname "the brick".

The first commercial network in the mobile world are automatically released in Japan NTT in 1979, initially in the metropolitan area of ​​Tokyo in 1981, followed by the launch of the European mobile system (NMT). in Denmark, Finland, Norway and Sweden. Some countries, it is necessary in the early 1980s and the mid-including the UK, Mexico and Canada.

In 1983, U.S. mobile phone DynaTAC first 1G network launched Ameritech it worth $ 100 million to build and use in the decades to hit the mobile market, half an hour, and it took ten hours to charge. Consumer demand is strong and the battery light conversation and queues in the thousands.

In 1991 (2G) cellular technology was launched on the GSM standard Radiolinja Finland creating competition in the sector of new operators for operators challenging the existing 1G network.

Ten years later, in 2001, the third generation (3G) was launched in Japan by NTT DoCoMo on the WCDMA standard has been followed by 3.5G, 3G + or turbo 3G increase in high-speed packet access (HSPA) family, which helps. UMTS networks will provide higher data rates and transfer capacity.

By 2009 it was clear that at some point, 3G networks are burdened increase bandwidth applications such as streaming media. Therefore, the industry began looking to optimize the four promises increased speed up to 10 times compared to existing 3G technology in both first is available in normal commercial 4G WiMAX (ie In the U.S., Sprint) and the LTE standard, TeliaSonera first proposed in Scandinavia.

Nowaday at 2012, the LTE technology was already developed to improve the performance of the mobile phone.