history of cell phones

service-handphones.blogspot.com


The history of cell phones or who we know HP was already there from colonial times, that is approximately 1947 in the country aka uncle sam and European Amrik there. In the year 1910 is the embryo of a cellular phone that was discovered by Lars Magnus Ericsson, who founded the company Ericsson is now known by the company Sony Ericsson. Initially, the Swedish company Ericsson is medirikan focus on areas of business perlaan telegraph, and his company are also not very big at that time.


In 1921 the first time the Detroit Michigan Police Department uses a mobile teleopn installed in all police cars using freuensi 2 MHz.


In 1960, in a company named Fennis Finnish Cable Works originally in business in the field of cable, do ekspensi by establishing an electronic company named Nokia as the mobile phone handset.


In the 1970s the rapid development of mobile phones to be dominated by three large companies in Europe with the company that Nokia and its rerusahaan Mototola.




In 1969, commercial cellular telecommunications systems. After 1970, mobile telecommunications are increasingly being talked about. Motorola introduces mobile phone three years later. Its size is quite large with a short antenna. There is also phone the size of a suitcase. Dr. Cooper, who became manager of Motorola's innovation project to install base stations in New York. For this project worked with Bell Labs Motorola. This discovery at once claimed as the invention's first mobile phone. On the morning of 3 April 1973, Cooper, then served as general manager at the Communication Systems Division of Motorola's showcase of the strange way of communicating a portable telephone terminal. He tried to phone 'giant' while walking the streets at various locations in New York. That's the first time are displayed and used cell phones in public.


In the show, Cooper uses the phone weighs approximately 30 ounces (800 grams) or ten times higher than the average - average mobile phone currently available.