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1G is the abbreviation for first generation mobile phone These phones use analog technology and were released in the 80's these continued after the commercial launch of second generation mobile phones the biggest difference between 1G and 2G the 1g is analogy and the 2G is digital.

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2G mobile telephony is a standard or protocol if not a way to mark the change from analog to digital mobile telephony, the arrival of the second generation of mobile telephony was around 1990 and from its development derives the need to have a greater call handling.  The same radio frequency spectra assigned to mobile telephony.  2G made it possible to integrate other services, such as sending text messages or the page service called SMS, and a greater capacity to send data from devices.

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Motorola moto e segunda generación (2015)  4G LTE

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3G It is the third generation of data and voice transition through UMTS, the services associated with the third generation offer the possibility of transferring voice and data such as downloading programs, exchanging emails and instant messaging.  Most 3G mobile phones support use as a USB modem compatible with Android and IOS smartphones and some allow use via WiFi or Bluetooth.

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4G is the 2G and 3 G Technology Successor and precedes the next generation 5 G, the first 4G services based on LTE technology were launched in Japan in the cities of Toquio in December 2010. ITU considers 4G generation to the Mobile telephony with maximum data transmission speeds that must be between 100 mega bit per second for high mobility and a gigabit per second for low mobility.

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Evolución de la Tecnología Móvil 1G - 5G | Cuarta Generación 4G

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5g considered the mobile generation of the year 2020, its first standardized version is currently available, although telephone companies continue to investigate new technologies for later versions, the new generation according to specialized media, high-capacity movies can be downloaded to our mobile phones in just 5 seconds will also improve connections for all the devices we want to connect to the Internet, especially smartphones.