Video: Cov ntaub ntawv chaw nyob yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
(1) Ib qhov chaw ntawm cov ntaub ntawv , feem ntau hauv lub cim xeeb loj lossis lub disk. Koj tuaj yeem xav txog lub cim xeeb hauv computer ua ib qho ntawm cov thawv ntim khoom, txhua qhov yog ib byte ntev. Txhua lub thawv muaj ib qho chaw nyob (tus naj npawb tshwj xeeb) muab rau nws. Los ntawm kev qhia amemory chaw nyob , programmers tuaj yeem nkag mus rau ib qho byte ntawm cov ntaub ntawv.
Cov lus nug tseem yog, koj txhais li cas los ntawm chaw nyob?
npe. ib nqe lus hais los yog sau ntawv, feem ntau raug cai, qhia rau ib pawg neeg tshwj xeeb: tus thawj tswj hwm chaw nyob ntawm lub xeev ntawm kev lag luam. txawj ntse thiab ceev ceev tswj; npaj txhij; xa: los daws qhov teeb meem nrog chaw nyob.
Ib sab saum toj no, koj txhais li cas los ntawm chaw nyob npav? Ib chaw nyob tsheb npav yog lub computer tsheb npav architecture siv los hloov cov ntaub ntawv ntawm cov khoom siv uas yog txheeb xyuas los ntawm kev kho vajtse chaw nyob ntawm lub cev nco (lub cev chaw nyob ), uas yog khaws cia rau hauv daim ntawv ntawm binary tooj los pab cov ntaub ntawv tsheb npav mus saib tau memorystorage.
Qhov sib thooj, koj txhais li cas los ntawm qhov chaw nyob ntawm lub cev?
Hauv kev suav, a qhov chaw nyob (kuj tiag chaw nyob , los yog binary chaw nyob ), yog lub cim xeeb chaw nyob uas yog sawv cev nyob rau hauv daim ntawv ntawm ib tug binary numberon tus chaw nyob tsheb npav circuitry thiaj li yuav pab kom cov ntaub ntawv busto nkag mus rau ib qho chaw cia ntawm lub ntsiab lub cim xeeb, los yog ib tug register ntawm lub cim xeeb mapped Kuv /O ntaus ntawv.
Lub npav data yog dab tsi?
A data tsheb npav yog ib qho system nyob rau hauv lub computer ordevice, muaj xws li ib tug connector los yog teeb ntawm cov xov hlau, uas muab kev thauj mus los rau cov ntaub ntawv . A data tsheb npav tseem hu ua aprocessor tsheb npav , sab pem hauv ntej tsheb npav , pem hauv ntej tsheb npav los yog rov qab tsheb npav -yog ib pawg ntawm cov xov hlau hluav taws xob siv los xa cov ntaub ntawv ( cov ntaub ntawv ) nruab nrab ntawm ob lossis ntau lub ntsiab lus.
Pom zoo:
Dab tsi yog lub hom phiaj ntawm delimiters nyob rau hauv cov ntawv sau npe ob hom ntawv cov ntaub ntawv delimiters?
Cov ntaub ntawv delimited yog cov ntawv nyeem siv los khaws cov ntaub ntawv, uas txhua kab sawv cev rau ib phau ntawv, tuam txhab, lossis lwm yam, thiab txhua kab muaj cov teb sib cais los ntawm tus lej
Dab tsi ntawm cov fais fab ntsaws yog siv nyob rau hauv cov ntaub ntawv chaw?
Cov hom ntsaws ntau tshaj plaws hauv cov chaw khaws ntaub ntawv yog C-13 thiab C-19 connectors (saib daim duab 1) raws li tau hais los ntawm IEC 60320. C-13 connectors feem ntau pom ntawm cov servers thiab cov keyboards me me, thaum cov hniav thiab cov khoom siv sib txuas loj dua siv C. -19 ntsaws vim nws muaj peev xwm nqa tam sim no ntau dua
Qhov chaw nyob ntawm lub cev thiab qhov chaw nyob qhov chaw nyob yog dab tsi?
Qhov sib txawv yooj yim ntawm Logical thiab lub cev chaw nyob yog qhov chaw nyob Logical yog tsim los ntawm CPU hauv kev xav ntawm ib qho kev pab cuam. Ntawm qhov tod tes, qhov chaw nyob ntawm lub cev yog qhov chaw nyob uas muaj nyob hauv lub cim xeeb. Cov txheej txheem ntawm txhua qhov chaw nyob uas tsim los ntawm CPU fora program hu ua Logical Address Space
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?
Kem oriented databases (aka columnar databases) yog qhov tsim nyog rau kev ntsuas kev ua haujlwm ntau dua vim tias cov ntaub ntawv hom ntawv (kem hom) qiv nws tus kheej kom nrawm dua cov lus nug ua - scans, aggregation thiab lwm yam. Ntawm qhov tod tes, kab oriented databases khaws ib kab (thiab tag nrho nws. kab) contiguously
Dab tsi yog cov teeb meem ntawm kev tswj cov ntaub ntawv hauv cov ntaub ntawv ib txwm muaj?
Nyob rau tib lub sijhawm, qhov kev tswj hwm cov ntaub ntawv ib puag ncig tsim teeb meem xws li cov ntaub ntawv rov ua dua thiab tsis sib xws, cov kev pab cuam-cov ntaub ntawv dependence, inflexibility, tsis muaj kev ruaj ntseg, thiab tsis muaj cov ntaub ntawv sib qhia thiab muaj