I-2.0 2.0 Iinkcukacha kunye nolwazi loxhumo
I-USB 2.0 yi- Universal Universal serial Bus (USB). Phantse zonke iifowuni ezinekhono le-USB, kwaye phantse zonke iimbambo ze-USB, inkxaso inkxaso okungenani kwi- USB 2.0.
Izixhobo ezihambelana nomgangatho we-USB 2.0 zinako ukuhambisa idatha kwisantya esiphezulu sama-480 Mbps. Oku kukhawuleza kunomlinganiselo osemgangathweni we- USB 1.1 kwaye ude kakhulu kunomlinganiselo omtsha we- USB 3.0 .
I-USB 1.1 ikhishwe ngo-Agasti 1998, i-USB 2.0 ngo-Ephreli 2000, kunye ne-USB 3.0 ngoNovemba 2008.
Qaphela: I- USB 2.0 idla ngokubizwa ngokuba yi- Hi-Speed USB .
I-2.0 2.0 Abaxhamli
Qaphela: Iplagi ligama elixhunywe kumnxeba wesilisa kwi-USB 2.0 okanye i- flash drive , ngelixa i- receptacle igama elinikwa umxhasi wesifa kwidivaysi ye-USB 2.0 okanye intambo yokwandisa.
- Uhlobo lwe-A lwe-USB : Ezi zixhobo zibizwa ngokuba yi-USB 2.0 Standard-A kwaye zixhunyaniswe ngokuxhomekeke kwi-USB yezixhobo ozifumanayo kwiinkcukacha ezininzi ezingekho eziphathekayo. I-USB 2.0 Thayipha i-connectors zihambelana nezo zivela kwi-USB 3.0 kunye ne-USB 1.1.
- Uhlobo lwe-B B : Ezi zixhobo zibizwa ngokuba yi-USB 2.0 Standard-B kwaye ziyikwele ngaphandle kwefowuni encinane phezulu. Iiprogiji ze-2.0 2.0 zeBB zihambelana nemeko ye-USB 3.0 kunye ne-USB 1.1 Iifom ye-B ye-B kodwa ii-plug-in ze-USB 3.0 zeBB azihambelani ngokulandelelana ne-USB 2.0 yohlobo lwe-B.
- I-USB Micro-A: Ezi zixhumo, ngakumbi iiplogi, zibukeka njengeenguqu ezincinane ze-USB 2.0 Udidi lwe-A A. I-2.0 2.0 Iiprogi ezincinci zihambelana nezibilini ze-USB 2.0 ze-Micro-AB kunye ne-USB 3.0 Micro-AB. Nangona kunjalo, ii-plugs ze-USB 3.0 ze-Micro-A ziza kufakwa kwii-USB 2.0 ze-Micro-AB.
- I-USB Micro-B: Ezi zixhumo zincinci kwaye zixilongo kodwa zombini iingxondorha kwelinye icala zihlonyelwe endaweni yesikwere. I-2.0 2.0 Iiprogiji ze-Micro-B zihambelana nezixhobo ezine: zombini i-USB 2.0 kunye ne-USB 3.0 Micro-B kunye ne-Micro-AB. Iiprogigi ze-Micro-B ezintsha ze-USB 3.0 azihambisani ngokulandelana kunye ne-USB 2.0 yokufumana imveliso.
- I-USB Mini-A: Ezi zixhumo zincinci kwaye zininzi zengxande kunye nelinye icala. Iiprogi ze-USB 2.0 ze-Mini 2.0 zihambelana ne-USB 2.0 Mini-AB.
- I-USB Mini-B: Ezi zixhumo zincinci kwaye zininzi zixande kunye nezibonelelo ezibonakalayo kwicala elifutshane. Iiprogigi ze-Mini 2.0 ze-USB zihambelana ne-USB 2.0 Mini-B kunye ne-USB 2.0 Mini-AB.
Qaphela: Ngu-USB kuphela ixhasa i-USB Mini-A, i-USB Mini-B kunye ne-USB Mini-AB.
Jonga i- USB yethu Isatifiketi sokuBambisana ngokomzimba kwiphepha elilodwa lephepha-nento.
Ukuhamba kweNkxaso yeDivaysi
Izixhobo ze-USB ze-1.1 ezindala kunye nezixhobo, ngokuyinxalenye, zihambelana ngokusemgangathweni kunye ne-USB 2.0 yehardware. Nangona kunjalo, indlela yodwa yokufikelela kwi-USB 2.0 isantya sokudlulisa ukuba ngaba zonke izixhobo kunye nezixhobo zixhunyelelana kwi-USB 2.0.
Ukuba, umzekelo, unayo ifowuni ye-USB 2.0 esetyenziswe ngekhebula le-USB 1.0, isantya se-1.0 sisetyenziswe kungakhathaliseki ukuba ifowuni isekela i-USB 2.0 kuba ikhebula ayixhasayo entsha, ngesivinini esheshayo.
Izixhobo ze-USB 2.0 kunye nezixhobo ezisetyenziswa nge-USB 3.0 kunye nezixhobo, ngokucinga ukuba zihambelane ngokomzimba, ziya kusebenza kwi-speed 2.0 ye-speed.
Ngamanye amazwi, isivinini sokudlulisela phambili siwela kumdala wezobuchwepheshe ezimbini. Oku kunengqiqo kuba awukwazi ukudonsa i-USB 3.0 ngesivinini kwikhebula le-USB 2.0, kwaye awukwazi ukufumana ukuhamba kwe-USB 2.0 usebenzisa ikhebula le-USB 1.1.
I-USB On-the-Go (OTG)
I-USB On-the-Go yakhululwa ngoDisemba 2006, emva kwe-USB 2.0 kodwa phambi kwe-USB 3.0. I-OTG ye-USB ivumela iifowuni ukuba zitshintshe phakathi kokusebenza njengomkhosi kwaye njengekhoboka xa ziyimfuneko ukuze zidibaniswe ngqo.
Umzekelo, i-smartphone 2.0 okanye ithebhulethi ye-USB iyakwazi ukukrazula idatha kwi-flash drive njengomncedisi kodwa uguqule kwimodi yekhoboka xa uxhumeke kwikhomputha ukwenzela ukuba ulwazi lunokuthathwa kuwo.
Isixhobo esinike amandla (umphathi) siqwalaselwa njenge-OTG A-ifowuni ngelixa lidla amandla (ikhoboka) libizwa ngokuba yi-B-device. Ikhoboka lisebenza njengefowuni yolu hlobo kule ndlela yokusetha.
Ukutshintshwa kweendima kwenziwa ngokusetyenziswa kweProgram yoHlaziyo lweMigudu (HNP), kodwa ukukhetha ngokwenyama idivayisi ye-USB 2.0 enokuthi ithathelwe ingqalelo njengekhoboka okanye ummkeli ngokuzenzakalelayo kulula njengoko ukhetha ukuphela kwekhefu ifowuni ixhunyiwe kuyo.
Ngamanye amaxesha, ukuvota kwe-HNP kuya kwenziwa ngumninimzi ukuqinisekisa ukuba ikhoboka licela ukuba libe ngumkhosi, apho iyakutshintsha khona indawo. I-USB 3.0 isebenzisa ukuvota kwe-HNP ngokunjalo kodwa ibizwa ngokuba yi-Role Swap Protocol (RSP).