Zoo li tus thawj laser disc

Thaum lub sij hawm, cov tsos ntawm cov thawj laser disc yog zoo li ib tug kiv puag ncig. Nws yeej yog ib tug tiag tiag kiv puag ncig nyob rau hauv lub teb ntawm ntaus cia. Zoo li tus thawj laser disc conditionally muab faib cov theem nyob rau hauv txoj kev loj hlob ntawm computer technology rau hauv "ua ntej" thiab "tom qab" CD.

Yog vim li cas yog nws thiaj li tseem ceeb? Piv txwv li, tam sim no rau cov muag khoom muaj cov drives Blu-txoj sab ci, lwm xov xwm drives raws li nyob rau hauv flash cim xeeb los yog sib nqus cov ntaubntawv povthawj siv, txawm li cas los, hais txog tej shocks tsis muaj ib tug hais lus. Qhov no uas nyob rau ntawm lub sij hawm tam sim no muaj ib tug tej yam ntuj tso evolutionary txoj kev loj hlob ntawm technology. Feem ntau cov neeg siv yuav tu tsawg npaum li cas ntawm lub zog tsav nyob rau hauv ib lub tsev computer - 2 los yog 3 terabytes, raws li ntev raws li muaj cov tsis muaj xws cov kev pab cuam, uas yuav yuav tsum tau xws li ib tug loj ntim. MP3 sau los yog yeeb yam ntaub ntawv yuav xyuam xim muab cia rau hauv tej tais ceev tseg rau cov disc: tag nrho cov txaus rau tag nrho cov tib free volume. Thaum ua ib tug reservation - qhov no yog muaj tseeb rau qhov nruab nrab neeg siv.

Qhov teeb meem no yog heev txawv thaum muaj cov tsos ntawm cov thawj laser disc. Thaum lub yooj yim ntaub ntawv muaj nyob drives (nyuaj disks) , saj zawg zog nqus diskette. raws li nyob rau hauv magnetic muag nthas disk drive ntaub ntawv yuav tuav li rau 1,44 MB ntawm cov ntaub ntawv. Ntawm cov hoob kawm, muaj advanced qauv nrog ib tug muaj peev xwm ntawm mus txog 2,88 MB thiab lwm yam los daws nrog lub ntsiab cai tib yam ntawm cov ntaubntawv povthawj siv - Iomega Zip thiab Jazz (mus txog 750 MB rau hauv tus txheej txheem sunset lub sij hawm), txawm li cas los, vim rau qhov nqi ntawm cov drives thiab cov muaj lawv tus kheej yog tsis txaus kis. Qhov luaj li cas ntawm tag nrho cov kev pab cuam zog, thiaj li tsis muaj ib tug yog ras yog hais tias cov ntaub ntawv hloov lwm lub tsev yog tsim nyog los siv tsis tau ib tug tab sis ob peb diskettes. Tshwj xeeb tshaj yog ib qho nyuaj tsav peev xwm yog tsis txaus, vim hais tias nws nyob ntau thiab ntau cov kev pab cuam uas xav kom. Ceg froze nyob rau hauv anticipation ntawm ib yam dab tsi tshiab uas yuav daws tau cov teeb meem.

Nyob rau tib lub sij hawm nyob rau hauv lub teb ntawm cov suab cassettes tseem reigned. Nrog rau tag nrho lawv cov shortcomings paub: nws yog qhov yuav tsum tau mus kho cov nyeem lub taub hau; xaiv ntawm sib nqus coatings (chrome, hlau); Periodic tu Broaching mechanism; txaav ntawm tsheb thauj mus los thiab cia (magnetic teb yuav puas rau cov ntaubntawv povthawj). Zoo li tus thawj laser disc ntse solved tag nrho ntawm cov teeb meem no: nyob rau hauv computer technology tau ua tau mus khaws thiab hloov los ntawm ib lub computer los loj loj tagnrho (650 - 900 MB) ntawm cov ntaub ntawv, thiab cov ntaubntawv povthawj siv lub ntiaj teb no muaj nyob rau hauv nws pov tseg ib tug universal nruab nrab, devoid ntawm lub disadvantages tapes thiab surpassing lawv nyob rau hauv zoo suab.

Kom deb li deb peb yuav tsis hais nrog certainty leej twg ua tau yees ua lub CD. Nws yog feem ntau txais tswv yim hais tias lawv nyob rau hauv 1979 tsim ob tug loj tuam txhab uas muag - Philips thiab Sony. Peb xyoos tom qab, qhov loj zus tau tej cov CDs thiab lwm yam pab kiag li lawm rau kev nyeem ntawv tau tsim muaj. Nyob rau tib lub sij hawm, tej zaum koj yuav nrhiav tau cov assertion tias cov CD yog invented los ntawm physicist D. Russell nyob rau hauv 1971 raws li ib tug lwm txoj rau nws sau los ntawm yas cov ntaub ntawv, kos-nws.

Ntawm no yog ib co nthuav cov lus tseeb muaj feem rau cov CDs:

- Disc Loj 12 cm twb xaiv tsis tau los ntawm lub caij nyoog. Sony Engineers ntseeg tias txaus ntawm 100 hli, raws li qhov no yuav ua rau kev nyeem ntawv ntaus ntawv ntau compact. Nyob rau hauv Philips lub tswv yim hais tias qhov luaj li cas yuav tsum sib npaug zos rau cov kab pheeb ces kaum daig kab (115 hli).

- Raws li vice-tus thawj tswj hwm ntawm lub Sony, Norio Oga ntseeg hais tias cov disc yuav tsum siab haum Beethoven lub Cuaj Symphony (74 feeb ntawm lub suab), uas txhais rau hauv cov ntaub ntawv ua nws 650 MB.

- Nyob rau hauv 1980, qhov loj ntawm lub CD tau thaum kawg pom zoo los ntawm lub tuam txhab uas muag, yog 12 cm.

- Vim 2000 700MB (80 feeb) ntau ntau yam yuav luag tag hloov nws 650MB counterparts. Tsis ntev xwb ces twb 800 thiab txawm 900 MB discs, tab sis loj muab faib rau lawv tau txais.