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Vinicius de Oliveira Regner
Lorenzo Lavratti Fabro

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The cell phone timeline goes beyond the 70s, when it was born. Specifically, the origins date back to the late 1930s with the invention of portable radios in the United States.

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What many don't know is that the cell phone found in the first AM portable radios, the SCR-194 and 195, is an ancestor. These models were produced by the US Army Signals Engineering Laboratories.

Weighing approximately 25 pounds and having a range of 5 miles, these "walkie talkies" were widely used during World War II.

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The phone leaves the car thanks to DynaTAC (Dynamic Adaptive Total Area Coverage), with which former Motorola vice president Martin Cooper made the first private call.

The device in question weighed 1.1kg and its dimensions were 228.6x127x44.4mm. The user could talk for 30 minutes and it took nearly 10 hours for his battery to fully charge.

Regarding connectivity, these first devices belong to the “Zero Generation” (0G), as they do not have this capability.

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Cell phone The world's first cell phone was invented by electrical engineer Martin Cooper.

Considered the “father” of the cell phone, Cooper innovated by creating a prototype in 1973, a Motorola DynaTAC 8000X model, which would become the first cell phone to be marketed in the world, in 1983.

Another curiosity about the evolution of the cell phone is that the first unit of this device was sold even before cell phone plans existed.

Only a few months after the launch, the first plan appeared, which cost 50 dollars a month at the time.

This value is equivalent today to something around 127 dollars or about R$ 521.00 monthly and approximately R$ 4.20 per minute

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The evolution of the cell phone also involves the first text message in history: “Merry Christmas”. It was sent on December 3, 1992 by a 22-year-old engineer at the time, Neil Papworth. He worked at Vodafone, the UK operator.

The message was typed into the computer and was part of a test. Then it was sent to Richard Jarvis, director of Vodafone, who received the text for an Orbitel 901 model, one of the first in the world to have a GSM network integration.

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Arguably, with the 90s, a race begins to improve the design of the phones and make them more portable so that any consumer can access them.

And at the end of the decade, multipurpose phones emerged with: games, calculator, clock, calendar, profile settings and screen colors.

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In the history of mobile phone evolution, the Nokia 9000 Communicator is considered one of the first smartphones. It allowed internet access via browser! However, only two operators in Finland made this connection possible.

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Sharp makes its model J-SH04 available to the public, with a built-in camera that offers images with a resolution of 0.1 megapixels.

With this device came what is known today as MMS, thanks to the fact that it has an integrated CCD sensor and the Sha-Mail (Picture-Mail) infrastructure.

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In the meantime, the BlackBerry arrives! The first device to feature cellular connectivity, operating over a GSM network.

As such, the BlackBerry 5810 allowed users to send emails and organize their data very efficiently.

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Currently, Samsung and Apple lead the market in terms of technology and desired devices. The dispute between the two companies is quite fierce and surrounded by controversies.

However, the prices of smartphones are very salty and arrive in Brazil at values ​​that are not accessible to the general public! For this reason, models such as Xiaomi have increasingly stood out against the two giants in the sector.

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LINHA DO TEMPO DO TELEFONE CELULAR: EVOLUÇÃO DESDE 1930 - TECNOLOGIA - 2021 (journalmural.com)

Evolução do celular: Linha do Tempo da História dos Celulares (melhorplano.net)