Video: Cov ntaub ntawv khaws cia hauv cov khoom siv sib nqus li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Sib nqus cia los yog Sib nqus recording yog khaws cia ntawm cov ntaub ntawv ntawm qhov nruab nrab magnetized. Sib nqus cia siv cov qauv sib txawv ntawm magnetisation hauv cov khoom siv magnetisable los khaws cia cov ntaub ntawv thiab yog ib daim ntawv uas tsis-volatile nco . Cov ntaub ntawv nkag mus siv ib lossis ntau dua nyeem / sau taub hau.
Tsis tas li ntawd, cov ntaub ntawv khaws cia thiab nyeem los ntawm lub hard disk li cas?
A magnetic disk tsav muaj ntau lub platters ( disks ) coated hauv a Sib nqus khoom. Lawv tig ntawm ib ncig ntawm 7200 rpm. Cov data yog encoded rau hauv cov khoom thiab sau rau saum npoo raws li cov kev hloov pauv hauv cov kev taw qhia ntawm magnetization. Cov cov ntaub ntawv yog nyeem los ntawm kev txheeb xyuas cov kev hloov hauv kev coj ua.
Ib yam li ntawd, puas yog lub hard drive ib qho khoom siv sib nqus? A hard disk tsav ( HDD ), hard disk , hard drive , los yog kho disk yog cov ntaub ntawv electro-mechanical khoom cia uas siv sib nqus cia khaws thiab khaws cov ntaub ntawv digital siv ib lossis ntau qhov nruj nrawm nrawm disks (platters) coated nrog Sib nqus khoom.
Sib piv, dab tsi yog cov khoom siv sib nqus thiab kho qhov muag?
Optical Storage Devices : Optical cia khoom yog tiaj, round disks uas tig ncig nws qhov chaw. Qhov txawv nrog magnetic cia khoom yog in optical cia khoom LASER teeb yog siv los nyeem thiab sau cov ntaub ntawv hauv disks. Piv txwv li CD, DVD thiab lwm yam.
Cov khoom siv sib nqus cia ua haujlwm li cas?
Ib yam li lub hard drive, lub xov xwm siv nyob rau hauv tshem tau Sib nqus - cov khoom siv cia yog coated nrog hlau oxide. Thaum cov ntaub ntawv raug nyeem los ntawm tus tsav, lub taub hau nyeem rub tawm qhov sib txawv Sib nqus teb hla qhov sib txawv, tsim kom muaj qhov sib txawv Sib nqus teb nyob rau hauv lub tub ntxhais thiab yog li ntawd ib tug teeb liab nyob rau hauv lub kauj.
Pom zoo:
Dab tsi yog cov ntaub ntawv hloov pauv hauv cov ntaub ntawv khaws cia?
Cov ntaub ntawv hloov pauv yog cov ntaub ntawv uas tau tsim nyob rau hauv daim ntawv thov kev sib ntsib, uas tsis tau khaws cia hauv cov ntaub ntawv tom qab daim ntawv thov raug txiav
Ntev npaum li cas cov ntaub ntawv tuaj yeem khaws cia hauv cov ntaub ntawv warehouse?
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Dab tsi yog kev siv cov ntaub nplaum sib nqus hauv kev khaws cov ntaub ntawv?
Sib nqus daim kab xev cov ntaub ntawv khaws cia yog ib qho system forstoring digital information on magnetic tape using digital recording. Niaj hnub nimno magnetic daim kab xev yog feem ntau ntim rau hauv cartridges thiab cassettes. Cov cuab yeej uas ua ntawv sau lossis nyeem cov ntaub ntawv yog daim kab xev
Vim li cas kem taw qhia cov ntaub ntawv khaws cia ua cov ntaub ntawv nkag ntawm disks sai dua li kab qhia cov ntaub ntawv khaws cia?
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Yuav ua li cas ntxig cov ntaub ntawv hauv DataBase siv cov txheej txheem khaws cia hauv MVC?
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