2G Yakagadzirwa Nenzira Dzakakurumbira kumatafoni
Munyika yefoni, iyo yose hurukuro inenge ine 4G uye 5G , iwe unogona kunge usingafungi nezvekombiyuta yeGG yakawanda, asi pasina iyo, ungasava ne "Gs" gare gare se 3G, 4G kana 5G .
2G: Pakutanga
2G inomirira wechipiri-generation wireless digital teknolojia. Shanduro dzose dzeGG 2G dzakashandura teknolojia yeAgog 1G, yakatanga muma1980. 2G mamanki akaona chiedza chekutanga chekutengeserana kwezuva pamutambo we GSM . GSM, iyo yakaita kuti kufamba kwenyika dzakawanda kuvepo, inotsanangurwa yehutsika yenyika yekutengesa foni.
Shanduro yeGG yeGGM yakatanga kushandiswa mukutengeserana muna 1991 muFinland neRadiolinja, iyo zvino yava chikamu cheElisa, kambani yaizivikanwa muma1900 seHelsinki Telephone Company.
Chizvarwa chechipiri foni yekombiyuta inguva yekuparadzanisa nguva yakawanda kuwana ( TDMA ) kana kuparadzaniswa kwekodhi yakawanda kuwana (CDMA).
Dhawuni uye teerera zvinomhanya mu teknolojia ye 2G yaiva 236 Kbps. 2G yakatangira 2.5G , iyo yakaisa teknolojia ye 2G ku 3G .
Makomborero e 2G Technology
Apo 2G yakatumirwa kumafoni, yakarumbidzwa nekuda kwezvikonzero zvakawanda. Chiratidzo chayo chinoshandisa simba shoma kudarika zviratidzo zveanalogog saka mabheti efoni anogara kwenguva refu. Kushanda kwehutano hwegadziriro 2G yakagadziridza kuiswa kweSMS-iyo pfupi uye inonyanya kufarirwa mharidzo yemashoko-pamwe nemashoko e-multimedia (MMS) uye mifananidzo yemifananidzo. 2G's encryption digital yakawedzera huwandu kune data uye nheyo dzezwi. Ndiyo chete uyo anogamuchirwa wekufonera kana kuti mavara anogona kugamuchira kana kuiverenga.
2G Kukanganisika
2G maserofoni aida zviratidzo zvemajita zvine simba kuti zvibate, saka vakanga vasingakwanisi kushanda mumaruwa kana munzvimbo shoma dzevanhu.