Video: Sasd thiab DASD yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Lub Sequential Access Storage Device ( SASD ) yog lub khoos phis tawj cia khoom uas nws cov ntsiab lus nkag mus raws li qhov tsis sib xws ncaj qha. Piv txwv li, daim kab xev tsav yog a SASD , thaum lub disk tsav yog Direct Access Storage Device ( DASD ).
Tom qab ntawd, ib tug kuj yuav nug, DASD txhais li cas?
Direct access cia ntaus ntawv
Tom qab ntawd, lo lus nug yog, dab tsi yog qhov ncaj qha nkag rau ntawm disk? kev nkag ncaj qha - Computer txhais tau tias (2) Muaj peev xwm nyeem lossis sau ib qho chaw cia tshwj xeeb yam tsis tas yuav mus dhau qhov chaw ua ntej lossis tom qab nws. Feem ntau synonymous nrog "random nkag mus "Magnetic disks , SSDs, optical data discs thiab RAM yog thawj kev nkag ncaj qha hardware nyob rau hauv lub computer.
Ntxiv mus, dab tsi yog cov khoom siv nkag ncaj qha muab piv txwv?
A ncaj qha - nkag mus khaws cia ntaus ntawv (DASD) yog lwm lub npe rau kev khaws cia thib ob khoom siv uas khaws cov ntaub ntawv hauv qhov chaw sib cais nrog qhov chaw nyob tshwj xeeb, xws li hard disk drives, optical drives thiab feem ntau sib nqus cia khoom siv.
Dab tsi yog qhov sib txawv ntawm kev nkag ncaj qha thiab kev nkag mus raws li qhov sib txuas?
Kev nkag mus ua ntu zus yuav tsum pib thaum pib thiab nkag mus txhua yam nyob rau hauv kev txiav txim, ib tug tom qab lwm yam. Kev nkag ncaj qha tso cai rau nkag mus ntawm ib qho khoom ncaj qha los ntawm kev nrhiav nws los ntawm nws tus lej ntsuas lossis chaw nyob. Yog tias koj nyob ntawm lub tsheb ciav hlau, mus ntawm ib lub tsheb mus rau lwm qhov koj yuav tsum siv kev nkag mus ua ntu zus.
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