Inyanzvi yekombiyamu 2.5G yakatanga kushandiswa kwepa packet-switching tech
Munyika yesefonifoni, teji yekombiki ye-2.5G yaive yegadziriro inowedzera chikwata chechipiri chechipiri ( 2G ) isina uterevhizheni uye yechitatu yezera ( 3G ) wireless teknolojia. Kunyange zvazvo 2G uye 3G zvinorondedzerwa zvakananga sevasina mitemo, 2.5G haisi. Yakasikirwa nekuda kwekutengesa.
Sechikamu chekatikati kubva 2G kusvika 3G, 2.5G yakaona zvimwe zvekufambira mberi kwema 3G mitanda kusanganisira mapepa-switch systems. Kushanduka kubva ku 2G kusvika kuG 3G kwakakurumidza kufambisa nekukurumidza kwekukwanisa kudhinda kudarika.
Dzidziso yekushanduka kwekombiyuta yeGGG
Mumakore makumi mapfumbamwe nemasere, maserofoni akabatwa pane teknolojia yeAnalog 1G. Digital teknolojia yeGG 2G yakatanga kuwanikwa mumavambo ekuma1990 pane pasi rose yekutengesa foni (GSM). Inyanzvi iyi yaive yakawanikwa senguva iyo kupatsanurana kuwanika kuwanika (TDMA) kana kuparadzaniswa kwekodhi yakawanda kuwana (CDMA). Kunyange zvazvo teknolojia ye 2G yakasimudzwa nekombiyuta inozotevera, ichiri kuwanikwa munyika yose.
Inyanzvi yekombiyamu 2.5G yakaunza purogiramu-switching technique yaive yakanakisisa kudarika yakatangira. Zvigadziriswa zvaro zvinogona kushandiswa pane zvinodiwa zvakashata panzvimbo pane imwe nguva-yega, izvo zvakaita kuti zvive nani kupfuura teknolojia ye 2G. Teknolojia ye2,5 yakateverwa ne 2.75G, iyo yakawanda katatu inyanzvi, uye teknolojia ye 3G mukupera kwema1990. Pakupedzisira, 4G uye 5G yakatevera.
2.5G uye GPRS
Izwi rokuti 2.5G dzimwe nguva rinoshandiswa kureva General Packet Radio Service ( GPRS ), iyo inoshandiswa kushandiswa kwemashoko yakashandiswa paGMM mitambo uye ndiyo yaiva danho rokutanga mukushanduka kwekombiyuta yeGG. GPRS mitambo yakaguma yakagadziriswa kuInhanced Data Rates ye GSM Evolution ( EDGE ), iyo ndiyo nheyo yepamusoro yehutano hwe 2.75G, humwe hufambira mberi hunoshamisa husati huri hwusingaoneki.