History of cell phones or that we know the HP, it has existed from the colonial period, ie circa 1947 at uncle sam aka American countries and Europe there. In the year 1910 was the forerunner to a cellular phone that was discovered by Lars Magnus Ericsson, who founded the company Ericsson is now known by the company Sony Ericsson. At first, this Swedish company Ericsson medirikan focus on business areas perlaan telegraph, and perusahaanya also not too big at that time.
In 1921 the first time the Detroit Police Department Michigan using mobile teleopn installed in all police cars using freuensi 2 MHz.
In 1960, in Finland, a company called Fennis Cable Works, which was originally in business in the field of cable, do ekspensi by founding an electronics company named Nokia as the mobile phone handset.
In the 1970s a rapid growth in mobile phone is dominated by three large companies in Europe with a company that Nokia and Ericsson and Motorola companies in America with
In 1969, commercial cellular telecommunications systems. After the year 1970, mobile telecommunications more frequently talked about. Motorola introduces mobile phone three years later. Indeed, quite large in size with a short antenna. There are also phone the size of a suitcase. Dr Cooper, who became project manager for Motorola's innovations that put the base station in New York. For this project Motorola worked with Bell Labs.
This discovery at once claimed as the discovery of the first mobile phone. In the morning 3 April 1973, Cooper, when it served as general manager of Communications Systems Division, Motorola demonstrated a strange way of communicating from the portable telephone terminal. He tried to phone 'giant' with a walk at various locations in New York. That's the first time are displayed and used mobile phones in public.
In the show, Cooper's use of mobile phones weighing approximately 30 ounces (800 grams) or ten times higher than - average mobile phone currently available.
