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  1. Lifewire
    https://www.lifewire.com/1g-vs-2g-vs-2-5g-vs-3g-vs-4g-578681

    1G, 2G, 3G, 4G, & 5G Explained - Lifewire

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      Identifying the strengths of the underlying technology of a cell phone is simple as long as you understand the meaning of 1G, 2G, … See more

    1G: Voice Only

    Remember analog phones back in the day? Cell phones began with 1G technology in the 1980s. 1G is the first generation of wireless cellular technology. 1G supports voice only … See more

    Lifewire
    2G: SMS and MMS

    Cell phones received their first major upgrade when their technology went from 1G to 2G. This leap took place in Finland in 1991 on GSM networks and effectively took cell phone… See more

    Lifewire
    2.5G and 2.75G: Data, Finally

    Before making the major leap from 2G to 3G wireless networks, the lesser-known 2.5G and 2.75G were interim standards that bridged the gap to make data transmissio… See more

    Lifewire
    3G: More Data, Video Calling, and Mobile Internet

    The introduction of 3G networks in 1998 ushered in faster data-transmission speeds, so you could use your cell phone in more data-demanding ways such as for video calling and … See more

    Lifewire
    What is 4G & how does it work?
    Starting at a minimum of 12.5 Mbps, 4G provided high-quality video streaming/chat, fast mobile web access, HD videos, and online gaming. Compared to a simple SIM card switch from 2G to 3G, mobile devices needed to be specifically designed to support 4G. However, when 4G first started, it wasn’t actually 4G.
    cengn.ca
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    Table of Contents
    1G: Voice Only
    2G: SMS and MMS
    2.5G and 2.75G: Data, Finally
    3G: More Data, Video Calling, and Mobile Internet
    What is 4G & how does it work?
     
  1. CENGN
    https://www.cengn.ca/information-centr…

    Timeline from 1G to 5G: A Brief History on Cell Phones

    Sep 21, 2020 · Compared to a simple SIM card switch from 2G to 3G, mobile devices needed to be specifically designed to support 4G. However, when 4G first started, it wasn’t actually 4G . When the ITU-R set the required minimum …

  2. Images of 1G 2G 3g/4g 5G Sim Card

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  3. Baeldung
    https://www.baeldung.com/cs/mobile-net…

    Mobile Networking: 1G vs. 2G vs. 3G vs. 4G vs. 5G

    May 2, 2023 · Now operating on a frequency band of 2100 MHz, 3G offers data transfer rates of up to 2 Mbps, making it possible to access the Internet and stream videos on mobile devices and delivering better call quality and reduced …

  4. Wikipedia
    https://en.wikipedia.org/wiki/Compariso…

    Comparison of mobile phone standards - Wikipedia

    14 rows · This is a comparison of standards of wireless networking …

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