Mobile phone

The first hand-held mobile phone was demonstrated by Dr Martin Cooper of Motorola in 1973, using a handset weighing around 2.2 pounds (1 kg)


The new invention sold for an expensive price of $3,995 and weighed two pounds, receiving the nickname "the brick".




The first mobile telephone call made from a car occurred in St. Louis, Missouri, USA on June 17, 1946, 


The second generation (2G) cellular technology was launched in Finland by Radiolinja on the GSM standard, in 1991


The third generation (3G) was launched in Japan by  DoCoMo on the WCDMA standard  2001




The fourth generation (4G) was launched by  Motorola, HTC and Samsung in 2011.