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2G — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/2G
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-06T12:13:54.827Z
SHA-256 of the archived text: c663992b8ad5301819dfd20a6c90d21c281b167b373cb0fe3c6b89c3763af6c7
Stable URL of this page: https://metraipolis.com/documento/dc_df58396bcd99

How to cite

2G — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/2G (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_df58396bcd99 (Metraipolis archive dc_df58396bcd99, sha256 c663992b8ad5301819dfd20a6c90d21c281b167b373cb0fe3c6b89c3763af6c7)

BibTeX

@misc{dcdf58396bcd99,
  title = {2G — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/2G},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_df58396bcd99; sha256 c663992b8ad5301819dfd20a6c90d21c281b167b373cb0fe3c6b89c3763af6c7},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/2G. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

2G refers to the second generation of cellular network technology, which were rolled out globally starting in the early 1990s. The main differentiator to previous mobile telephone systems, retrospectively dubbed 1G, is that the radio signals of 2G networks are digital rather than analog, for communication between mobile devices and base stations. In addition to voice telephony, 2G also made possible the use of data services. The most common 2G technology has been the GSM standard, which became the first globally adopted framework for mobile communications. Other 2G technologies include cdmaOne and the now-discontinued Digital AMPS (D-AMPS/TDMA), as well as the Personal Digital Cellular (PDC) and Personal Handy-phone System (PHS) in Japan. The transition to digital technology enabled the implementation of encryption for voice calls and data transmission, significantly improving the security of mobile communications while also increasing capacity and efficiency compared to earlier analog systems. 2G networks were primarily designed to support voice calls and Short Message Service (SMS), with later advancements such as General Packet Radio Service (GPRS) enabling always-on packet data services, including email and limited internet access. 2G was succeeded by 3G technology, which provided higher data transfer rates and expanded mobile internet capabilities.

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (deposito sistematico; retro-catalogo: tutte le voci di Wikipedia in inglese, in ordine alfabetico).
Fonte: Wikipedia in inglese, voce «2G» — https://en.wikipedia.org/wiki/2G
Wikidata Q845349: «tecnologie di telefonia cellulare» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q845349
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/2G?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1383111016, consultata il 2026-11-06T12:11:39.963Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: feb771a33456d7df111b141c77301cca493bd4c5757225ba4281acb7bbce8295