Momwe Maselo Am'manja Amagwirira Ntchito
GSM ndi chiyani?
Teknoloji ya GSM ndi teknoloji yomwe inu (mwinamwake) ndi 80% a ogwiritsa ntchito mafoni amagwiritsira ntchito popempha mafoni awo. Mwa njira, ndiyomwe ndi osasunthika protocol yotumizira kugwiritsira ntchito mafoni.
GSM idabwerera mmbuyo mu 1982 ndipo kenaka idatchulidwa ndi gulu lomwe linalingalira, Groupe Spécial Mobile, kumene GSM imatchulidwa. Pulogalamu ya boma inayambika yokha ku Finland mu 1991. Iko tsopano ikutchedwa Global Systems for Mobile mauthenga.
GSM imatengedwa ngati protocol 2G (yachiwiri). Zimagwira ntchito ndi maselo, chifukwa chake makina a GSM amatchedwanso makanema, ndipo mafoni ogwira ntchito pa GSM amatchedwa mafoni. Tsopano selo ndi chiyani? Ntchetche ya GSM imagawidwa m'maselo, ndipo iliyonse imakwirira malo ochepa. Zida (mafoni) zimapezeka ndipo zimalumikizidwa ndi maselowa.
Gulu la GSM limakhala ndi zipangizo zogwiritsira ntchito (zipangizo zina), obwereza kapena otumizira, omwe anthu amachitcha mayina - zida zazikulu zitsulo zomwe zimakhala ngati nsanja zapamwamba -, ndi mafoni a m'manja a ogwiritsa ntchito.
Gulu la GSM kapena makompyuta ndiwongolankhulirana 3G, yomwe imanyamula deta pamwamba pa makanema omwe alipo pa intaneti.
SIM Card
Foni iliyonse ya m'manja imagwirizanitsidwa ndi intaneti ya GSM ndipo imadziwika kudzera mu khadi la SIM (Subscriber Identity Module), yomwe ndi khadi laling'ono lomwe limayikidwa mkati mwa foni yam'manja. SIM khadi iliyonse imapatsidwa nambala ya foni, yolembedwera mozama, yomwe imagwiritsidwa ntchito monga chinthu chodziwika chodziwika kwa chipangizo pa intaneti. Umu ndi momwe foni yanu imakhalira (osati wina aliyense) pamene wina akusunga nambala ya foni yanu.
sms
Anthu a GSM apanga njira yolankhulirana yomwe ndi yotchipa mosiyana ndi kulankhulana kwapadera kwa mawu; iyi ndi Short Messaging System (SMS). Izi zimaphatikizapo kutumiza mauthenga afupipafupi pakati pa mafoni a m'manja pogwiritsa ntchito manambala a foni.
Kutchulidwa: gee-ess-emm
Zomwe zimadziwika monga: makanema, ma selo
GSM ndi Voice over IP
Mafoni a GSM kapena mafoni akuwonjezera kulemera kwakukulu kwa bajeti ya mwezi uliwonse ya anthu ambiri. Chifukwa cha Voice over IP ( VoIP ), yomwe imadutsa makanema a ma selo ndi makanema mawu ngati data pa intaneti, zinthu zasintha kwambiri. Popeza VoIP imagwiritsa ntchito intaneti yomwe imakhala yomasuka, maitanidwe a VoIP amakhala omasuka kapena otchipa kwambiri poyerekeza ndi mayitanidwe a GSM, makamaka maitanidwe apadziko lonse.
Tsopano, mapulogalamu monga Skype, WhatsApp , Viber, LINE, BB Messenger, WeChat ndi ena ambiri amapereka maulendo aufulu padziko lonse pakati pa ogwiritsa ntchito. Ena a iwo amapereka maitanidwe ku malo ena otsika mtengo kuposa ma call GSM. Izi zikuchititsa kuchepa kwa chiwerengero cha mayitanidwe a GSM omwe akuyikidwa, ndipo SMS ikukumana ndi kutha kwa mauthenga aulere.
Komabe, VoIP siinathe kugunda GSM ndi telephony yachikhalidwe pa khalidwe la mawu. Mbali ya voli ya GSM imakhalabe yabwino kwambiri kuposa ma telefoni omwe amachitidwa pa intaneti ngati otsirizira sakhala otsimikizika ndipo mzere sudziperekedwe monga GSM.