I-USB 3, i-USB 3.1, iGenesis 1, iGenesis 2, i-C-Type C: Yintoni ithetha ntoni na?
Umbuzo: Yintoni i-USB 3?
Yiyiphi i-USB 3 kwaye iya kusebenza kunye namacwecwe am aphezulu ase-USB?
Impendulo:
I-USB 3 iyona ntlawulo yesithathu enkulu ye-USB (i-Universal Serial Bus). Xa kuqaliswe okokuqala, i-USB yanikezela ukuphucula ngokucacileyo kwindlela iipheripheriti ezixhomekeke ngayo kwikhompyutha. Ngaphambili, ii-serial kunye neeports ezifanayo zaziqhelekileyo; ngamnye wayefuna ukuqonda ngokucacileyo kokubili ifowuni kunye nekhompyutheni yokusingatha idivayisi ukwenzela ukusetha uqhagamshelo ngokufanelekileyo.
Ngethuba kwakukho ezinye iinzame zokudala inkqubo yokuxhumo elula yokusebenzisa iikhomputha kunye nemipheripheral, i-USB mhlawumbi yokuqala yayiyimpumelelo malunga nayo yonke ikhompyutha, kungakhathaliseki ukuba yintoni umenzi.
I-USB 1.1 iqalise ibhola yokuqhawula ngokubonelela uxhulumaniso lweplagi kunye nodlala oluxhasayo kwi-1.5 Mbit / s ukuya kwi-12 Mbits / s. I-USB 1.1 yayingekho ininzi yesidemon, kodwa kwakungaphezulu kokukhawuleza ngokwaneleyo ukuphatha iigundane, ii-keyboards , iimodem kunye nezinye izinto ezihamba ngokukhawuleza.
I-USB 2 ifake i-ante ngokubonelela kwi-480 Mbit / s. Nangona isantya esiphezulu sasibonwa kuphela ekugqibeleni, kwakungcono ukuphucula. Ukuqhutshwa kwangaphandle kokusebenzisa i-USB 2 yaba yindlela eyaziwayo yokufaka isitoreji. Isantya sazo siphucukisiwe kunye nomthamo wendlela eyenziwe ngayo i-USB 2 yinto ekhethekileyo kwezinye iindawo ezinxulumene nazo, kuquka i-scanners, iikhamera kunye neekhamera zevidiyo.
I-USB 3 izisa inqanaba elitsha lomsebenzi, ngeendlela ezintsha zokudlulisa idatha ezibizwa ngokuba yi-Super Speed, ezinika i-USB 3 isivinini esiphambili se-Gbits / s.
Ukusetyenziswa kwangoku, isivinini esikhulu se-4 Gbits / s silindelwe, kwaye izinga lokutshintshwa eliqhubekayo lika-3.2 Gbits / s liyafezeka.
Ukukhawuleza ngokwaneleyo ukukhusela amaninzi okuqhuba kanzima namhlanje ekuzaliseni uxhumano nedatha. Kwaye kukhawulezileyo ukusetyenziswa kunye ne- SSD eninzi- based SSDs , ngokukodwa ukuba i- enclosure yakho yangaphandle isekela i-UASP (iProtokholi ye-USB ejoliswe kwi-SCSI Protocol) .
I-adage endala yokuba ukuqhuba kwangaphandle kuhamba kancinci kunezo zangaphakathi akusoloko kunjalo.
Ijubane elikhulu alikho kuphela ukuphuculwa kwe-USB 3. Isebenzisa iindlela ezimbini zedatha ye-unidirectional, enye idlulisele kwaye enye ifumaneke, ngoko ke akusadingeki ulinde ibhasi ecacileyo ngaphambi kokuba uthumele ulwazi.
I-USB 3.1 I-Gen 1 inempawu ezifanayo njenge-USB 3. Inaloo ntlawulo yokulingana (ama-5 amaGbits / ama-max), kodwa inokudibaniswa nekhonkco ye-USB yohlobo lwe-C (iinkcukacha ezingezantsi) ukubonelela kuma-watts angama-100 amandla angaphezulu, kunye nokukwazi ukufaka i-DisplayPort okanye i-HDMI yevidiyo.
I-USB 3.1 iGenesis 1 / i-USB Uhlobo lweC-i yi-specification ye-port esebenzisa i -MacBook ye-2015-intshi ye-MacBook , enika imilinganiselo efanayo yokudlulisa njenge-USB 3.0 port, kodwa yongeza amandla okuphatha ividiyo ye- DisplayPort ne- HDMI , kwakunye nokukwazi ukuba sikhonze njengechwethi yokuhlawula ibhetri ye-MacBook .
I-USB 3.1 iGenesis 2 iphindwe kabini iirhafu zokudlulisela i-USB 3.0 ukuya kwi-10 Gbits / s, efana nesantya sokutshintshela efanayo njenge-original Thunderbolt. I-USB 3.1 iGenesis 2 ingadibaniswa nomxhamli omtsha we-USB Type-C ukuquka ukubuyisela amandla, kwakunye nevidiyo ye-DisplayPort ne-HDMI.
Uhlobo lweC-USB (olubizwa ngokuba yi- USB-C ) luyimodeli engummiselo wechwephethi ye-USB ehambelanayo engasetyenziselwa (kodwa ayimfuneko) kunye ne-USB 3.1 iGenesis 1 okanye i-USB 3.1 iGenesis 2.
I-USB-C kunye neenkcukacha zekhebula zivumela uxhumano olubuyiselwayo, ngoko ke ikhefu le-USB-C linokuxhunyezwa kunoma yikuphi ukuqhelaniswa. Oku kwenza ukuba ikhefu le-USB-C libe kwi-USB-C elula kakhulu.
Kananjalo linakho ukuxhasa ezinye iindlela zedatha, ukuvumela amaxabiso e-data ukuya kuma-Gibits / s, kunye nokukwazi ukuxhasa ividiyo ye-DisplayPort ne-HDMI.
Okokugqibela kodwa, i-USB-C inamandla okuphatha amandla amakhulu (kufika kuma-watts angama-100), ukuvumela ichwep ye-USB-C ukuba isetyenziswe kumandla okanye ifake iikhomputha ezininzi zeencwadi.
Ngoxa i-USB-C inokuxhasa amaxabiso aphezulu kunye nevidiyo, akukho mfuneko kwiinkcukacha ezixhamliweyo ze-USB-C ukuba zisebenzise.
Ngenxa yoko, ukuba ifowuni inombonakaliso we-USB-C, oko akuthethi ngokuthe ngqo ukuba i-port isekela ividiyo, okanye isantya se-Thunderbolt-like. Ukukwazi ngokuqinisekileyo kufuneka uphonononge ngakumbi, ukufumanisa ukuba ngaba yi-USB 3.1 iGenesis 1 okanye i-USB 3 Gen 2 port, kwaye yiziphi izixhobo ezisetyenziswa ngumenzi wefowuni.
I-USB 3 Architecture
I-USB 3 isebenzisa i-multi-buses system evumela i-USB 3 ithrafikhi kunye ne-USB 2 ukuqhubela i-cube ngxeshanye. Oku kuthetha ukuba ngokungafani neenguqulelo zangaphambili ze-USB, ezisebenzayo kwisantya esiphezulu secebo elincinci kakhulu elixhunyiwe, i-USB 3 ingazikhupha kunye nangona ifowuni ye-USB 2 ixhunyiwe.
I-USB 3 inomsebenzi oqhelekileyo kwiinkqubo ze-FireWire kunye ne-Ethernet: ukuxhamla okuxhomekeke kumninimzi wokunxibelelana. Olu bunako lukuvumela ukuba usebenzise i-USB 3 ngeekhompyutha ezininzi kunye nemipheripherha ngexesha elinye. Kwaye ngokucacileyo kwi-Macs kunye ne-OS X, i-USB 3 kufuneka ikhawuleze i-disk mode, indlela esebenzisa ngayo i-Apple xa udlulisa idatha ukusuka kwi-Mac endala ukuya entsha.
Ukuhambelana
I-USB 3 yenzelwe ukususela ekuqaleni ukuxhasa i-USB 2. Zonke idivayisi ze-USB 2.x zimele zisebenze xa zixhunywe kwi-Mac ene-USB 3 (okanye nayiphi na ikhompyutha exhotyiswe nge-USB 3, loo nto). Ngokufanayo, i-USB 3 yomnxeba kufuneka ikwazi ukusebenza kunye ne-USB 2 port, kodwa le nto idlwengula, njengoko kuxhomekeke kuhlobo lwe-USB 3. Ngethuba nje ukuba isixhobo asixhomekeke kwenye yeziphuculo ezenziwe kwi-USB 3, kufuneka isebenze kunye ne-USB 2 port.
Ngoko, kuthekani nge-USB 1.1? Ngokuba ndiyakwazi ukuxelela, i-USB 3 inkcazelo ayibhale uluhlu lwe-USB 1.1.
Kodwa ezininzi iinkalo, eziquka iibhola eziphambili zamanqwanqwa kunye namagundane, zixhobo ze-USB 2. Mhlawumbi kufuneka ufune ubunzulu obunzulu kwikheromethi ukuze ufumane i-USB 1.1 ifowuni.
USB 3 kunye ne-Mac yakho
I-Apple ikhethe indlela enomdla wokufaka i-USB 3 kwiminikelo yayo ye-Mac. Phantse zonke iimodeli ze-Mac ezizukulwana zangoku zisebenzisa ii-USB 3.0 ezichwebeni. Okukuphela kweMacBook ka-2015, esebenzisa i-USB 3.1 iGenesis 1 kunye nomxhasi we-USB-C. Amanqaku angoku i-Mac azinikezele amachwephelo e-USB 2, njengokuba ufumanisa ngokuqhelekileyo kwi-post ye-PC. I-Apple isebenzisa i-USB efanayo Isixhobo esininzi esinalo; Ukwahlukana kukuba i-USB 3 yolu hlobo lunezikhonkwane ezongezelelweyo ezixhasa ukuqhutyelwa kwe-USB 3. Oku kuthetha ukuba kufuneka usebenzise ikhabhi ye-USB 3 ukufumana ukusebenza kwe-USB 3. Ukuba usebenzisa ikhebula elidala le-USB 2 oyifumene kwibhokisi kwikhamera yakho, liya kusebenza, kodwa kuphela kwi-USB 2 ngesivinini.
I-USB-C isetyenziswe kwi-MacBook ka-2015 idinga i-adapters yeekhamera ukusebenza kunye ne-USB 3.0 okanye i-USB 2.0.
Uyakwazi ukubona ikhabhi ye-USB 3 nge logo ehlanganiswe kwikhebula. Iqukethe iileta "SS" kunye nesimboli se-USB ecaleni kwesicatshulwa. Okwangoku, unokufumana kuphela iicube ze-USB 3, kodwa oko kungatshintsha, kuba umgangatho we-USB awudingi umbala othile.
I-USB 3 ayilona uxhumano lwe-piprogram oluphezulu olusetyenziswe yi-Apple. Uninzi lweMacs lukwazi ukufikelela kwiiHotbolt zokungena kwii-Gbps ezingama-20. I-MacBook Pro ye-2016 yazisa ii-Thunderbolt ezi-3 ezixhasa ukukhawuleza kwama-40 Gbps. Kodwa ngenxa yesizathu esithile, abakhiqizi abangekho banikezela iipilisi ezininzi zeThunderbolt, kwaye abo bazinikelayo zibiza kakhulu.
Okwangoku, ubuncinci, i-USB 3 yindlela yokujonga intengo kwiinkcukacha zangaphandle ezikhawulezayo.
| Mac Model | USB 3 | USB 3.1 / Gen1 | USB 3.1 / Gen2 | USB-C | Isibilini 3 |
|---|---|---|---|---|---|
| 2016 MacBook Pro | X | X | X | X | |
| MacBook 2015 | X | X | |||
| 2012-2015 MacBook Air | X | ||||
| 2012-2015 MacBook Pro | X | ||||
| 2012-2014 mini mini | X | ||||
| 2012-2015 iMac | X | ||||
| 2013 Mac Pro | X |