Puas yog siv los nyeem cov ntaub ntawv ntawm ib qho optical disc?
Puas yog siv los nyeem cov ntaub ntawv ntawm ib qho optical disc?

Video: Puas yog siv los nyeem cov ntaub ntawv ntawm ib qho optical disc?

Video: Puas yog siv los nyeem cov ntaub ntawv ntawm ib qho optical disc?
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A disk tsav uas siv laser beams rau nyeem thiab sau cov ntaub ntawv ntawm qhov chaw ntawm ib qho optical disc . Thaum lub CD tuaj yeem tuav 700 MB ntawm cov ntaub ntawv thiab ib qho yooj yim DVD tuaj yeem tuav 4.7 GB ntawm cov ntaub ntawv , ib leeg Blu-duab tshav disc tuaj yeem tuav txog 25 GB ntawm cov ntaub ntawv.

Ib yam li ntawd, cov ntaub ntawv nyeem los ntawm optical disc li cas?

Kho qhov muag cov cuab yeej cia txuag cov ntaub ntawv raws li cov qauv ntawm cov dots uas tuaj yeem ua tau nyeem siv lub teeb. Lub teeb laser yog lub teeb ci li niaj zaus. Cov cov ntaub ntawv ntawm qhov nruab nrab cia yog nyeem los ntawm bouncing lub laser beam tawm ntawm qhov nruab nrab. Cov txheej txheem no hu ua 'hlawv' cov ntaub ntawv rau a disc.

Kuj Paub, cov cuab yeej kho qhov muag yuav nyeem thiab sau cov ntaub ntawv li cas? Optical cia yog ib qho hom cia uas cov ntaub ntawv yog sau thiab nyeem nrog laser. Feem ntau, cov ntaub ntawv yog sau rau optical media , xws li compact discs (CDs) thiab DVDs. Optical media yog ruaj dua li daim kab xev, HDDs thiab flash tsav thiab yooj yim dua rau ib puag ncig tej yam kev mob.

Ib yam li ntawd, lub khoos phis tawj siv li cas los nyeem cov ntaub ntawv ntawm optical disc?

Kho qhov muag cia, hluav taws xob cia nruab nrab uas siv low-power laser beams rau sau thiab khaws cia digital (binary) cov ntaub ntawv . Hauv kho qhov muag -Storage technology, ib tug laser beam encodes digital cov ntaub ntawv pe ib kho qhov muag los yog laser, disk nyob rau hauv daim ntawv ntawm me me pits teem nyob rau hauv concentric lem ntawm lub disk cov nto.

Cov ntaub ntawv khaws cia thiab nyeem li cas ntawm optical storage media?

Kho qhov muag cia yog cov khaws cia ntawm cov ntaub ntawv ntawm optically nyeem tau nruab nrab . Cov ntaub ntawv yog sau los ntawm kev ua cov cim nyob rau hauv ib tug qauv uas yuav ua tau nyeem rov qab nrog kev pab ntawm lub teeb, feem ntau yog ib tug nqaj ntawm laser lub teeb precisely teem rau ib tug spinning optical disc.

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