Kev txhim kho USB cov ntaub ntawv cable
May 02, 2018| USB yog lub npe luv rau Universal Serial BUS (Lus Askiv), thiab nws lub npe Suav yog "Bandline", tus qauv tsheb npav sab nraud uas tswj kev sib txuas thiab kev sib txuas lus ntawm cov khoos phis tawj thiab cov khoom siv sab nraud. Nws yog ib qho interface siv hauv PC teb. USB interface txhawb nqa plug-and-play thiab kub-plugging ntawm cov khoom siv, thiab USB tau thov los ntawm ntau lub tuam txhab xws li Intel, Compaq, IBM, thiab Microsoft thaum kawg ntawm 1994.
Txawm li cas los xij, nws tsuas yog siv dav mus txog thaum tsis ntev los no. Lub USB version tau ntsib ntau xyoo ntawm kev txhim kho, thiab tam sim no nws tau tsim rau hauv 3.0 version, dhau los ua tus qauv nthuav dav hauv cov khoos phis tawj tam sim no. Tam sim no, USB1.1 thiab USB2. USB siv ib tug 4-pin (USB 3.0 standard 8-pin) plug li tus qauv plug. Nws tuaj yeem daisy-chain tag nrho cov khoom siv thiab txuas mus txog 127 cov khoom siv sab nraud yam tsis tau poob bandwidth. USB xav tau kev txhawb nqa ntawm tus tswv tsev kho vajtse, kev ua haujlwm, thiab cov khoom siv sab nraud ua haujlwm. Tam sim no cov motherboards feem ntau siv lub chipset tswj uas txhawb USB ua haujlwm. Ib qho USB interface qhov (socket) kuj tseem txuas rau ntawm lub mainboard. Ntxiv nrog rau lub qhov (socket backplane), ib tus pin USB tau tshwj tseg rau ntawm lub mainboard thiab tuaj yeem txuas rau pem hauv ntej ntawm lub chassis los ntawm kev sib txuas cable. Raws li pem hauv ntej USB interface rau kev yooj yim ntawm kev siv. Tsis tas li ntawd, USB interface tuaj yeem paub txog kev sib txuas ntawm ob lub tshuab los ntawm kev sib txuas ntawm USB tshwj xeeb, thiab tuaj yeem nthuav dav ntau qhov cuam tshuam los ntawm Hub. USB muaj kev sib kis ceev ceev (USB1.1 yog 12Mbps, USB2.0 yog 480Mbps, thiab USB3.0 yog 5Gbps). Nws yog ib qho yooj yim mus use, txhawb kub-swappable, hloov tau yooj yim kev twb kev txuas, ywj siab fais fab mov, thiab muaj peev xwm txuas mus rau ib tug nas, keyboard, tshuab luam ntawv, thiab lwm yam. Scanners, koob yees duab, flash drives, MP3 players, xov tooj ntawm tes, digital koob yees duab, mobile hard drives, sab nraud optical floppy drives, USB network phaib, ADSL Modem, Cable Modem, thiab lwm yam. Yuav luag tag nrho cov khoom siv sab nraud.
USB interface tuaj yeem siv los txuas mus txog 127 qhov khoom siv xws li nas, modem thiab keyboard. Txij li thaum nws cov kev taw qhia nyob rau hauv 1996, USB tau ua tiav nyob rau hauv kev hloov serial thiab parallel ports thiab tau dhau los ua ib tug ntawm cov tsim nyog interfaces rau niaj hnub no tus kheej computers thiab ib tug loj tus naj npawb ntawm cov khoom ntse.