Muaj tseeb koj tau pom ntau ntau hom ntawv cim xeeb thiab xav tsis thoob: lawv txhua tus sib txawv li cas? Ntau tus yam ntxwv thiab cov chaw tsim hluav taws xob yog cov kab lus tseem ceeb tshaj plaws nyob ntawm kev sib tw ntawm hom no. Hauv tsab xov xwm no, lawv cov khoom xws li cov chav kawm ntawv ceev yuav raug muab suav ua txhua yam. Cia peb pib!
Saib kuj: Cov tswv yim xaiv xaiv lub cim xeeb rau koj lub smartphone
Nco kev ceev daim card
Ib chav kawm yog qhov kev ntsuas ntawm qhov sib txawv ntawm cov ntaub ntawv txauv ntawm lub cim xeeb thiab lub tshuab uas nws tau nruab. Ntau dua qhov kev tsav ntawm tus tsav tsheb, qhov ceev nws yuav tsum kaw cov duab thiab cov yeeb yaj duab cov ntaub ntawv, thiab yuav muaj tsheb tsawg dua thaum lawv qhib thiab ua si. Txij li hnub no muaj ntau yam li 3 chav kawm, txhua ntawm cov uas muaj peev xwm kuj muaj ib qho sib txawv, lub koom haum SD Card Association thoob ntiaj teb (ntxiv mus hais txog SDA) tau npaj kos npe qee cov cwj pwm ntawm SD nco phaib muaj cai rau lawv cov ntaub ntawv. Cov chav kawm tau muab lub npe hu ua SD Speed Class thiab tam sim no lawv muaj xws li: SD Class, UHS thiab Video Class.
Ua tsaug rau cov tshuaj no, txhua tus neeg uas xav mus yuav ib lub tsheb me me yuav tuaj yeem ntsia nws cov khoom ntim hauv khw thiab tau txais cov ntaub ntawv qhia txog nws cov kev ceev. Tab sis koj yuav tsum nco ntsoov ceeb toom, vim hais tias qee tus neeg ua lag luam tsis muaj kev vam meej, khij lub npav, tej zaum yuav muaj lub siab nyeem ntawv ntawm qhov khoom, tsis yog sau ntawv rau nws, uas yog qhov tsis txaus siab ntawm SDA qhov kev txiav txim siab thiab yog kev tsis ncaj. Ua ntej koj yuav khoom, nrhiav kev xeem ntawv hauv Internet los sis xyuas cov tsav tsheb ncaj nraim hauv lub khw, nug txog tus neeg muag khoom pab no. Siv cov software tshwj xeeb, koj tuaj yeem tshawb xyuas cov ntawv teev npe ntawm koj lub computer.
Ntsuam xyuas kuj: Txuas siv daim npav nco txog lub computer lossis lub laptop
Sau cov chav kawm ceev
CD Class, UHS, thiab Video Class yog cov txheej txheem rau kev teev cia rau hauv daim npav nco. Tus najnpawb uas tau qhia ntawm kab lus luv luv yog tus nqi qis tshaj plaws ntawm cov ntaub ntawv teev cia ntawm cov cuab yeej hauv qhov kev sim siab tshaj plaws. Qhov ntsuas no yog ntsuas hauv MB / s. Qhov nrov tshaj plaws yog tus qauv SD tus qauv thiab nws cov kev hloov, nrog ib tug tawm ntawm 2 mus rau 16 (2, 4, 6, 10, 16). Ntawm cov khoom siv, nws yog qhia raws li tsab ntawv ntawm cov tsiaj ntawv Latin "C", hauv uas yog tus naj npawb. Cov nqi no yuav txhais tau hais tias ceev sau ntawv.
Yog li, yog tias koj muaj tus nab npawb 10 nyob rau hauv daim ntawv qhia hauv tsab ntawv "C", ces qhov yuav tsum yog tsawg kawg yog 10 MB / s. Cov kauj ruam tom ntej hauv kev tsim cov qauv kev sau ntawv ceev ceev yog UHS. Ntawm daim npav nco, nws raug xaiv los ua tsab ntawv "U", uas muaj cov Roman numeral I los III, los yog lawv cov neeg Mes Kas. Tsuas yog tam sim no, tsis zoo li cov hoob SD, tus naj npawb hauv lub cim yuav tsum tau khwv tau los ntawm 10 - qhov no koj yuav paub qhov yam ntxwv tsim nyog.
Hauv xyoo 2016, SDA tau qhia txog cov lus qhia ceev tshaj plaws rau hnub tim - V-Class. Nws muaj speeds ntawm 6 mus rau 90 MB / s, nyob ntawm tus zauv. Cov ntawv xov xwm uas txhawb cov txheej txheem no yog cim nrog tsab ntawv "V", tom qab ntawd muaj tus nab npawb. Muab ntau npaum li no los ntawm 10 thiab voila - tam sim no peb paub qhov sau tsawg ntawm qhov kev tsav no.
Nws tseem ceeb heev: Ib daim npav nco tau tuaj yeem txhawb ntau, txog li 3, tus qauv ceev, tiam sis tsis yog txhua lub cuab yeej ua haujlwm nrog cov qauv sai dua SD Kawm.
SD Cov Chav Kawm (C)
SD cov hoob kawm nce zuj zus tuaj, qhov pitch uas yog 2. Qhov no yog qhov zoo li ntawm daim npav cev.
- SD Hoob 2 muaj kev ceev ceev tsawg kawg yog 2 MB / s thiab yog tsim los ua yeeb yaj kiab yees duab nrog 720 los ntawm 576 pixels. Qhov video hom no hu ua SD (tus qauv txhais, tsis yog yuav tsum totaub nrog Secure Digital - qhov no yog lub npe ntawm lub cim xeeb hom ntawv nws tus kheej) thiab siv raws li tus qauv hauv TV.
- SD hoob 4 thiab 6 ua rau nws tau sau tsawg kawg 4 thiab 6 MB / s, raws li, uas yuav cia koj twb kam nrog HD video thiab FullHD zoo. Chav kawm no yog npaj rau cov koob yees duab ntawm thawj ntu, smartphones, game consoles thiab lwm yam khoom siv.
Tag nrho cov kev kawm tom ntej, mus txog rau hauv UHS V Hoob, txog cov ntaub ntawv twg yuav raug muab rau hauv qab no, tso cai rau koj sau cov ntaub ntawv rau tus neeg tsav tsheb sai thiab ntau yam zoo.
UHS (U)
UHS yog lub ntsiab lus ntawm cov lus Askiv "Ultra High Speed", uas txhais ua lus Hmoob ua "Ultra High Speed." Txhawm rau paub qhov qis tshaj plaws ntawm kev sau cov ntaub ntawv rau kev tsav tsheb nrog cov chav kawm ceev no, muab cov zauv los qhia rau lawv txog 10.
- UHS 1 yog tsim rau kev tua zoo ntawm FullHD video thiab teev ntws nyob. Cov lus cog tseg txog kev ceev tseg rau daim npav yog tsawg kawg yog 10 MB / s.
- UHS 3 yog tsim los khaws cov ntaub ntawv video 4K (UHD). Siv daim iav thiab daim iav tsis muaj duab rau kev yees duab hauv UltraHD thiab 2K.
Video Class (V)
Lub npe luv yog V-Class thiab tau nkag mus rau SD Card Association los xaiv cov ntawv qhia kom pom cov duab thaij duab thiab cov ntaub ntawv nrog cov kev txiav txim siab ntawm 8K lossis tshaj saud. Tus naj npawb tom qab tsab ntawv "V" qhia tau hais tias cov naj npawb ntawm cov MB / s. Tsawg kawg kiag rau cov ntawv teev lus nrog cov chav kawm ntawm kev khiav ceev yog 6 MB / s, uas sib raug rau cov chav kawm V6, thiab chav kawm ntawv siab tshaj plaws tam sim no yog V90 - 90 MB / s.
Xaus
Tsab xov xwm no tau tshawb xyuas 3 cov chav kawm ceev uas nco tau cov ntawv teev lus - SD Class, UHS thiab Video Class. SD Chav Kawm yog tsim los rau kev siv ntau hom kev kawm, thaum lwm chav kawm yog tsim rau ntau yam haujlwm. UHS yuav tso cai rau koj sau cov yeeb yaj kiab yees duab los ntawm FullHD rau 4K thiab nyob rau hauv cov xov xwm ntawm lub sijhawm, uas ua rau cov qauv qis qis dua. Video Class yog tsim kom txuag cov ntaub ntawv video loj loj nrog rau kev daws teeb meem ntawm 8K, thiab raws li 360 ° video, uas tau txiav txim siab txog nws cov ntaub ntawv ntawm daim ntawv thov - khoom siv thiab kim yees duab.
