The first call from a mobile phonefrom its manufacturer Martin Cooper who worked for Motorolabecame today, April 3, 1973.

This first device was 25 cm high, 9 cm wide and weighed 900 grams.

The journey of mobile telephony began immediately after World War IIwith the early efforts of the Swedes, Finns and Americans.

However, the date of birth is assumed to be April 3, 1973.

Dr Martin Cooper of Motorola, walking down a street in a big American city, he knew he was making history.

In his hands he held a device that looked like a portable radio. It was 25 cm tall and weighed 900 grams. This was the first modern mobile phone codenamed MotorolaDynaTAC.

He typed in the number of his main competitor, the Joel Engelwho was working on her behalf Bell Labs. “Hey Joe, I’m talking to you from a real cell phone” told him.

“Even though we didn’t have the best of relationships, he treated me very kindly” Cooper stated years later in an interview.

The first mobile phone to receive approval permission was the Motorola model DynaTAC8000X.

It was the flagship of the so-called first generation (1G) mobile phones.

At the beginning of the 90s, the take-off of mobile phones, with the digitization of networks (GSM) and devices.

Cell phones got smaller (100-200 grams), they fit in the palm of the hand and fit even with difficulty in the user’s pocket. This is how we moved to the second generation (2G) mobile phoneswhich also provided other facilities such as sending short text messages (SMS) and taking photos.

At the beginning of the 21st century, third generation mobile phones (3G), with the unlimited possibilities of multimedia.

Most, mobile phone penetration on the planet is growing by leaps and boundsespecially in the poor countries of the world, such as Africa.

Active devices exceed 6 billionwith the trend being upward.

The South Korean company Samsungwith a market share of 23% (December 2012), ranks first in mobile phone sales worldwide.