A lokacin da aka fara fasaha ta kwamfuta, daya daga cikin matsalolin mai amfani shine rashin karfin jituwa da na'urori - yawancin mashigan ruwa da yawa suna da alhakin haɗu da wurare, yawancinsu masu girman kai ne da ƙananan dogaro. Iya warware matsalar ita ce "motar bas na duniya" ko kuma a takaice, USB. A karon farko, an gabatar da sabon tashar jirgin ruwa ga jama'a baki daya a shekarar 1996. A shekara ta 2001, uwa da na'urorin USB 2.0 na waje sun kasance ga abokan ciniki, kuma a cikin 2010 USB 3.0 ya bayyana. Don haka menene banbanci tsakanin waɗannan fasahar kuma me yasa duka biyu suke buƙatar?
Bambanci tsakanin USB 2.0 da 3.0
Da farko dai, ya kamata a lura cewa duk tashar jiragen ruwa ta USB sun dace da juna. Wannan yana nufin cewa haɗa na'urar jinkirin zuwa tashar jiragen ruwa mai sauri da mataimakin mai yiwuwa ne, amma farashin musayar bayanai zai zama kaɗan.
Kuna iya "tantance" ma'aunin mai haɗawa da gani - tare da USB 2.0 an fentin farjin ciki farin, kuma tare da USB 3.0 - shuɗi.
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Bugu da kari, sabbin igiyoyi basa kunshe da hudu, amma na wayoyi takwas, wanda hakan ke sanya su zama da kauri kuma basu iya canzawa. A gefe guda, wannan yana ƙaruwa da aikin na'urori, yana inganta sigogin canja wurin bayanai, kuma a ɗayan, yana ƙara farashin kebul. A matsayinka na doka, kebul na USB 2.0 sun fi 1.5-2 yawa fiye da danginsu na "saurin". Akwai bambance-bambance a cikin girman da daidaitawar irin sigogin masu haɗin. Don haka, USB 2.0 ya kasu kashi biyu:
- nau'in A (al'ada) - 4 × 12 mm;
- nau'in B (na al'ada) - 7 × 8 mm;
- nau'in A (Mini) - 3 × 7 mm, trapezoidal tare da sasanninta masu zagaye;
- nau'in B (Mini) - 3 × 7 mm, trapezoidal tare da kusurwoyi dama;
- nau'in A (Micro) - 2 × 7 mm, rectangular;
- nau'in B (Micro) - 2 × 7 mm, rectangular tare da sasanninta masu zagaye.
A cikin tsaran kwamfyuta, ana amfani da USB Type A na yau da kullun, a cikin na'urori na hannu - Nau'in B Mini da Micro. Bayanin USB 3.0 ɗin yana da rikitarwa:
- nau'in A (al'ada) - 4 × 12 mm;
- nau'in B (na al'ada) - 7 × 10 mm, siffar sifa;
- nau'in B (Mini) - 3 × 7 mm, trapezoidal tare da kusurwoyi dama;
- nau'in B (Micro) - 2 × 12 mm, rectangular tare da sasanninta masu zagaye da kuma hutu;
- nau'in C - 2.5 × 8 mm, rectangular tare da sasanninta masu zagaye.
Nau'in A har yanzu yana cin nasara a cikin kwamfutoci, amma Type C yana samun karuwa sosai a kowace rana. Ana nuna adaftar don waɗannan ƙa'idodin a cikin adadi.
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Tebur: Bayanai na asali kan Caparfin Port Port na ƙarni na uku da na uku
Mai nunawa | Kebul na USB | Kebul na USB |
Matsakaicin bayanai | 480 Mbps | 5 Gbps |
Matsayi na Gaskiya | har zuwa 280 Mbps | har zuwa 4.5 Gbps |
Matsakaici na yanzu | 500 mA | 900 mA |
Daidaitattun juzu'i na Windows | ME, 2000, XP, Vista, 7, 8, 8.1, 10 | Vista, 7, 8, 8.1, 10 |
Ya yi latti don rubuta kashe USB 2.0 daga asusun - ana amfani da wannan ma'auni don haɗa maballin, mice, firintocin, masu binciken, da sauran na'urorin waje, kuma ana amfani da su a cikin na'urori na hannu. Amma ga filasha da filasha ta waje, lokacin karantawa da rubuta saiti na farko ne, USB 3.0 yafi kyau. Hakanan yana ba ku damar haɗa ƙarin na'urori zuwa hub ɗaya kuma cajin baturi da sauri saboda mafi girman ƙarfin yanzu.