2G Yatulutsidwa Mbali Zambiri za Mafoni
M'dziko la mafoni, pomwe pali nkhani yonse ya 4G ndi 5G , simungaganize za teknoloji ya 2G, koma popanda izo, mwina simungakhale ndi "Gs" ngati 3G, 4G kapena 5G .
2G: Pachiyambi
2G imatanthawuza zipangizo zamakina zamakina opanda waya zopangidwa ndi kachiwiri. Mawindo awiri a digridi 2G anapanga teknolojia ya analog 1G, yomwe idayambira m'ma 1980. Mabungwe a 2G anaona kuwala kwawo koyamba kwa tsiku pa GSM muyezo. GSM, yomwe inachititsa kuti kuyendayenda kwapadziko lonse kutheke, ndizomwe zikutanthauza kuti dziko lonse likuyendera mafoni.
Mafilimu a 2G pa GSM adagwiritsidwa ntchito pochita malonda mu 1991 ndi Radiolinja, yomwe tsopano ili mbali ya Elisa, kampani yomwe idadziwika mu 1990 monga Helsinki Telephone Company.
Zida zamakono zam'manja zam'manja ndi nthawi yogawanitsa maulendo angapo ( TDMA ) kapena kugawanika kwa kachilombo kawiri kawiri (CDMA).
Koperani ndi kukweza liwiro pa teknoloji ya 2G inali 236 Kbps. 2G inayamba 2.5G , yomwe inakonza teknoloji ya 2G ku 3G .
Ubwino wa 2G Technology
Pamene 2G inadziwika ku mafoni, idatamandidwa pazifukwa zambiri. Chizindikiro chake chamagetsi chomwe chinagwiritsidwa ntchito mochepa mphamvu kuposa analog chimasonyeza kuti ma batri a m'manja amatha nthawi yayitali. Mafilimu ovomerezeka a 2G amachititsa kuti mauthenga a SMS athandizidwe komanso ochepa kwambiri, komanso mauthenga a multimedia (MMS) ndi mauthenga. Kujambula kwa digirii ya 2G kunaphatikizapo chinsinsi pa deta ndi mafoni. Ndiyo amene akufuna kulandira foni kapena mauthenga omwe angalandire kapena kuziwerenga.
2G Kulephera
Mafoni a 2G ankafuna zizindikiro zamagetsi zamphamvu, kotero iwo sakanatha kugwira ntchito kumidzi kapena kumidzi.