Nthawi yotumizira mwachangu ikubwera - USB 4.0

Mawu Oyamba

Mu 1994, Intel ndi Microsoft adayambitsa International Standardization Organisation, yotchedwa "USB-IF". Bungweli lidapanga mndandanda wazidziwitso ndi mafotokozedwe amtundu wa serial bus. Pakati pawo, muyezo womwe udapangidwa mozungulira kuthamangitsa mwachangu ndi protocol yodziwika bwino ya USB PD, yomwe pakadali pano ndi imodzi mwamadongosolo omwe amagwiritsidwa ntchito kwambiri pagulu, ndipo lipoti la kafukufuku wamafakitale a PD 3.1 latulutsidwa pamaso pa mutu wotsatsa. network yatulutsa mawu ataliatali, munthu amatha kumvetsetsa zamakampani onse a PD 3.1.

Kuphatikiza apo, USB-IF yapanga mulingo wotumizira ma data, ndipo idatchedwa USB #.0, pambuyo pakusintha kwaposachedwa, mawonekedwe aposachedwa a USB ndi USB4, nkhaniyi ifufuza mu USB4 kuyambira pomwe idatulutsidwa pamsika. kulimbikitsa chilengedwe cha mafakitale.

Za USB4

Dongosolo losamutsa deta la USB linatulutsidwa kale kwambiri kuposa USB PD, ndipo USB1.0 idayambitsidwa mu 1996, chaka chachitatu USB-IF itakhazikitsidwa. M'badwo woyamba wa USB muyezo, kufala kwake ndi 1.5Mbps kokha, tsatanetsatane wa chitukuko cha USB mbiri Mabaibulo chonde onani tebulo zotsatirazi:

Mu Seputembara 2019, USB4 idatulutsidwa mwalamulo ndi liwiro lalikulu la 40Gbps, lofanana ndi Bingu 3. USB4 ili ndi magawo awiri, motsatana, USB4 40 yokhala ndi bandwidth yayikulu ya 40Gbps, USB4 20 yokhala ndi bandwidth yayikulu ya 20Gbps, ndipo ogula amafunikira kuzindikira kuti USB4 40 ndi mawonekedwe amagazi athunthu.

Mu Seputembala 2022, muyezo wa USB4 2.0 udawululidwa pasadakhale, kuchuluka kwake kudakwezedwa mpaka 80Gbps, kamangidwe katsopano ka data kudakhazikitsidwa, ndipo mulingo wa USB PD wothamangitsa mwachangu, mawonekedwe a USB Type-C ndi chingwe cha chingwe zidzasinthidwanso chimodzimodzi.

Zitha kuwoneka kuti pokonza zosintha, kusintha kwakukulu ndikusintha kwa chiwerengero cha kufalitsa deta, kuchokera ku 1.5Mbps koyambirira mpaka kuwonetseredwa kwamakono kwa USB4 2.0 kwafika ku 80Gbps, kuwonjezeka kwa makumi masauzande nthawi. Kusintha kumeneku kumachitika makamaka chifukwa cha kukweza kwa njira yotumizira deta, kuyambira 2013, mtundu wa USB3, womwe udakwera mpaka ma 4 awiriawiri a njira zosiyanitsira, komanso wokhala ndi doko la USB-C, zomwe zimapangitsa kuti kufalitsa kwa data kukhale ndi kusintha kwabwino.

Pakadali pano, pali zinthu zambiri zomwe zimagwiritsa ntchito mawonekedwe a USB-C othamanga kwambiri, makamaka zida zosungira zakunja (monga ma drive othamanga kwambiri, zingwe zotumizira mwachangu, ndi zolumikizira zomwe zimagwiritsidwa ntchito mwachindunji zolemba zina zapamwamba).