Dzidza kusiyana kwemaitiro makuru emafoni
Paunenge uchisarudza chirongwa chakakodzera chekushandira foni pamutakuri wako wekusarudza ndicho chisarudzo chakakosha zvikuru, saka ndiko kusarudza kodzero yekutengesa foni mutsigiri panzvimbo yekutanga. Rudzi rwekombiyuta iyo anotakura anoshandisa inoita mutsauko paunenge uchitenga foni.
Ichi chinyorwa chinotarisa kusiyana pakati pemitambo ye teknolojia yefoni, GSGE , EDMA , CDMA uye TDMA .
GSM vs. CDMA
Kwemakore, iyo miviri mikuru yemichina yekufambisa foni-CDMA neGMM-yakave isinganzwisisani makwikwi. Izvi zvisingabvumirwi ndicho chikonzero mafoni akawanda AT & T asingashande neVerizon yese uye pamwe chete.
- GSM network providers vanoisa ruzivo rwevatengi pa SIM card inobviswa. Izvi zvinoita kuti zvive nyore kushandura mafoni; iwe unongotora SIM khadhi kunze kwefoni yako yekare uye uiise iyo yako itsva. GSM teknolojia yakapararira muEurope. Gadzirai chokwadi ichocho nefoni ine SIM inobviswa, uye une foni yaunogona kushandisa kune dzimwe nyika kutarisana ne SIM sim change.
- CDMA mafoni angangodaro kana kuti asina SIM card, asi ruzivo rwevashandi ruchengetedzwa nemupi webasa, rinofanira kupa mvumo yako kuti iwe ushandure mafoni. CDMA mafoni inofanira kunge yakarongedzwa nemutakuri wega waunoshandisa. Chero pose paunoshandura vatakuri, foni inofanirwa kugadziriswa kune uyo anotakura-kunyange kana iri yefoni isina kuvharwa.
Network Technology Muitiro Wehutano
Unhu hwebasa refoni harina chokuita nekombiyuta inoshandiswa nemupivhisi. Unhu hunoenderana nehutano pachayo uye kuti mupi wehupi anoumba. Izvo zvose zviri zviviri zvakanaka uye kwete-zvakanaka-mitanhi nekombiyuta ye GSM neCDMA. Iwe unowanzokwanisa kumhanyira kunhu hwakanaka nehutachiona hutano kupfuura nehukuru.
Zvakadini Nezvivhura Zvisina Kuvharwa?
Kubvira muna 2015, vatakuri veUnited States vose vakadzingwa kuti vashure mafoni evatengi vavo mushure mokunge vazadzisa kontrakiti yavo. Kunyange kana ukasarudza kuti foni yako isavhurwa kana kutenga foni itsva isina kuvharwa , ingave GSM kana CDMA foni pamwoyo, uye iwe unogona kungoishandisa chete nevatambi vanobatsirana. Zvisinei, kuva nefoni isina kuvharwa inokupa iwe uwandu hwakawanda hwevashandi vebasa kuti uchatora kubva. Iwe hausi wega chete.
01 ye 04
Chii chinonzi GSM?
GSM (Global System for Mobile communications) ndiyo inoshandiswa zvikuru yepasi rese inoshandiswa pakombiyuta, inozivikanwa muZimbabwe uye munyika yose. Shambafoni inotakura T-Mobile neAAT & T, pamwe chete nevatengi vemazana emagetsi, vanoshandisa GSM pamaketani avo.
GSM ndiyo inonyanya kuzivikanwa nekombiyuta yemakamuri muU.S., asi yakave yakakura kune dzimwe nyika. China, Russia, neIndia vose vane vashandisi vakawanda vefoni yeGMM kupfuura yeUnited States Zvinowanzozivikanwa kuti mitambo yeGMM inofambidzana nevekune dzimwe nyika, izvo zvinoreva kuti mafoni e GSM ndiwo maitiro akanaka kune vanofamba kune dzimwe nyika. Zvimwe »
02 of 04
Chii Chinonzi EDGE?
EDGE (Enhanced Data Rates ye GSM Evolution) inokurumidza katatu kupfuura GSM uye yakavakirwa pa GSM. Iyo yakagadzirirwa kugadzirisa mitambo yekushambadzira pamafoni efoni. AT & T uye T-Mobile vane EDGE mitanda.
Mamwe mazita eEGGE teknolojia anosanganisira Kuvandudzwa kweGPRS (EGPRS), IMT Single Carrier (IMT-SC) uye Nhamba Dzakanyanya Dheyo dze Global Global Evolution. Zvimwe »
03 of 04
Chii chinonzi CDMA?
CDMA (Code Division Multiple Access ) inokwikwidza ne GSM. Sprint, Virgin Mobile, uye Verizon Wireless vanoshandisa purogiramu yekodhidhiyo yeCDMA muU.S., sezvinoita vamwe vashoma vapeji vemagetsi.
Apo 3G CDMA mitambo, inozivikanwawo se "Evolution Data Optimized" kana "EV-DO" mitambo, yakatanga kubviswa, yaisagona kutumira dhidhiyo uye kuita manzwi ezwi panguva imwechete. Muzviitiko zvizhinji, zvikurukuru nevatengi vemagetsi vane 4G LTE network, dambudziko iri rakanyatsobudirira. Zvimwe »
04 we 04
Chii chinonzi TDMA?
TDMA (Time Division Division Multiple Access), iyo inotanga kuendesa mberi yakanyanya kupfuura GSM teknolojia yepamusoro, yakaiswa muGMM. TDMA, iyo yaive yegadziriro ye 2G, haisisiri kushandiswa nevakuru vemuSouth service cell carrier vatakuri. Zvimwe »