Futhi Kungani Amakhalekhukhwini Abizwa Ngezingcingo?
Ifoni yinoma iyiphi ifoni ephathekayo esebenzisa ubuchwepheshe benethiwekhi yeselula ukwenza nokwamukela izingcingo. Igama livela esakhiweni esifana neseli-la manethiwekhi. Kukhona ukudideka mayelana namafoni ukuthi ayinto ehlukile kuma-Smartphones, kodwa ngokwempela, yonke ifoni ephathekayo, kusukela ku-handset yakamuva ye-Android kuya efonini ephathekayo elula, iyiselula. Konke mayelana nobuchwepheshe obusetshenziselwa ukudlulisela izingcingo zakho, kunokuba yikuphi i-handset ngokwayo engakwazi noma engenakuyenza. Uma nje ifoni ingadlulisela isignali kwinethiwekhi yeselula, iyiselula.
Igama I-Cell Phone ingashintshashintsha nemigomo yefoni yeselula nefoni yeselula . Zonke zisho into efanayo. Igama elithi I- smartphone liye lasho umakhalekhukhwini ohlinzeka ngezici ezithuthukisiwe kunamakholi, imilayezo ye-SMS kanye nesofthiwe yokuhlela eyisisekelo. Ngokuvamile, uma ukhuluma ngomakhalekhukhwini, ifoni isetshenziselwa ukuchaza ifoni ephathekayo elula, kuyilapho i-smartphone isetshenziselwa ukuchaza amafoni weskrini okuthinta okuphambili kakhulu.
I-cell phone yokuqala etholakalayo ethengiswayo yenziwa yi-Motorola phakathi kuka-1973 no-1983, futhi yaqala ukudayiswa e-US ngasekuqaleni kuka-1984. Leli cell phone elikhulu elingama-280 gram, elibizwa nge- DynaTAC 8000x , libiza u-$ 3995.00 futhi lidinga ukukhokhiswa ngemuva sebenzisa imizuzu engamashumi amathathu kuphela. I-DynaTAC 8000x cishe ayitholakali njengeselula uma kuqhathaniswa namadivayisi esisebenzisa namuhla. Kulinganiselwa ukuthi kwakukhona amafoni angaphezu kuka-5 Billion asetshenziswa ekupheleni kuka-2012.
Ama-Cellular Networks
Inethiwekhi yeselula, enikeza amagama omakhalekhukhwini, yenziwe ngamastili weselula noma imibhoshongo esakazwa ezweni lonke iphethini elifana negridi. I-mast ngayinye ihlanganisa isifunda esincane esincane segridi, ngokuvamile eseduze namamayela ayisishiyagalolunye, okuthiwa i-Cell. Izithwali ezinkulu zefoni (AT & T, Sprint, Verizon, Vodafone, T-Mobile, njll,) zakha futhi zisebenzise ama-masts azo amaselula ngakho-ke zilawula izinga lokumbozwa kwamaselula abanganikeza. Amatts amaningana anjalo angatholakala embhoshongweni owodwa.
Uma ushayele ucingo kumakhalekhukhwini, isignali ihamba emoyeni kuya esiteshini esiseduzane noma embhoshongweni, bese ihanjelwa kwinethiwekhi yokushintshwa futhi ekugcineni kufakwe efonini lomuntu owubiza nge-mast esiseduze nabo. Uma wenza ucingo ngenkathi uhamba, emotweni eshukumisayo isibonelo, ungase usheshe ukuhamba ukusuka ebangeni elilodwa lesitokisi kuya kwesinye kwesinye. Awekho amangqamuzana amabili ahlangene asebenzisa imvamisa efanayo, ukuze agweme ukuphazanyiswa, kodwa ukuguqulwa phakathi kwezindawo zesimangqamuzana zeselula kuzovame ukuba kungenasici.
Ukutholakala Kwamaselula
Kwamanye amazwe, ukutholakala kwamaselula cishe sekuphelele uma unomunye wabathwali bezwe abakhulu. Ngokweqiniso noma kunjalo. Njengoba ungalindela, ukutholakala kwamaselula ezindaweni ezakhelwe ngokujwayelekile kungcono kunezindawo ezisemakhaya. Izindawo lapho kuncane khona noma okungenakho ukufaka khona okuvame ukubeka lapho kukhona ukungena okuncane, noma izindawo lapho kunenzuzo encane kumaseli eseli (izindawo ezinabantu abancane, isibonelo). Uma ucabanga ngokushintsha isithwali sakho, ngokuqinisekile kufanele uhlole ukubheka ukuthi ukubheka kwabo kufana kanjani nendawo yangakini.
Ama-cellular cellular ezindaweni ezakhelwe njengamadolobha ngokuvamile asondelene kakhulu, ngezinye izikhathi angamamitha angamakhulu ambalwa, ngoba izakhiwo nezinye izakhiwo zingaphazamisa isignali. Ezindaweni ezivulekile, ibanga phakathi kwama-masts lingaba amakhilomitha ambalwa ngoba kuncane ukuphazamisa amagagasi omsakazo. Uma isignali yeselula inobuthakathaka nje (kunokuba ingekho), kungenzeka ukuthi abathengi bathenge i-repeater yeselula noma i- extender yenethiwekhi , zombili zazo ezingakhuphula futhi zikhulise isignali ebuthakathaka.