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  2. List of open-source mobile phones - Wikipedia

    en.wikipedia.org/wiki/List_of_open-source_mobile...

    Open QTMoko/OpenMoko phones of Qt Extended are included to the list. Note that it is often possible to install a wide variety of open-source operating systems on any open-source phone; the higher-level software is designed to be largely interchangeable and independent of the hardware. [16]

  3. TracFone Wireless - Wikipedia

    en.wikipedia.org/wiki/TracFone_Wireless

    TracFone Wireless was established in 1996 as Topp Telecom Inc., a prepaid mobile phone company, in Miami, Florida. It was founded by David Topp and F.J. Pollak. Pollak acted as the CEO of Tracfone until his death in 2016. [2] In February 1999, Topp received a major infusion of capital from Telmex, Mexico's largest telephone company. Telmex paid ...

  4. Wireless device radiation and health - Wikipedia

    en.wikipedia.org/wiki/Wireless_device_radiation...

    Since at least the 1990s, scientists have researched whether the now-ubiquitous radiation associated with mobile phone antennas or cell phone towers is affecting human health. [1] Mobile phone networks use various bands of RF radiation, some of which overlap with the microwave range. Other digital wireless systems, such as data communication ...

  5. Mobile phones are not linked to brain cancer, according to a ...

    www.aol.com/news/mobile-phones-not-linked-brain...

    Charday Penn/E+/Getty Images. A systematic review into the potential health effects from radio wave exposure has shown mobile phones are not linked to brain cancer. The review was commissioned by ...

  6. Mobile technology - Wikipedia

    en.wikipedia.org/wiki/Mobile_technology

    Nikola Tesla laid the theoretical foundation for wireless communication in 1890. Guglielmo Marconi, known as the father of radio, first transmitted wireless signals two miles away in 1894. Mobile technology gave human society great change. The use of mobile technology in government departments can also be traced back to World War I.

  7. Wireless - Wikipedia

    en.wikipedia.org/wiki/Wireless

    Wireless communication (or just wireless, when the context allows) is the transfer of information (telecommunication) between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most common wireless technologies use radio waves. With radio waves, intended distances ...

  8. 5G - Wikipedia

    en.wikipedia.org/wiki/5G

    An Android phone, showing that it is connected to a 5G network. In telecommunications, 5G is the fifth-generation technology standard for cellular networks, which cellular phone companies began deploying worldwide in 2019, and is the successor to 4G technology that provides connectivity to most current mobile phones.

  9. History of mobile phones - Wikipedia

    en.wikipedia.org/wiki/History_of_mobile_phones

    History of mobile phones. A man talks on his mobile phone while standing near a conventional telephone box, which stands empty. Enabling technology for mobile phones was first developed in the 1940s but it was not until the mid-1980s that they became widely available. By 2011, it was estimated in Britain that more calls were made using mobile ...

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