Floppy disk: cov qauv, zoo thiab tsis zoo. Yuav ua li cas yog ib tug muag nthas disk?

Ib nrab ntawm cov tswv ntawm koj tus kheej computers yog tsis txawm paub hais tias muaj yog xws li ib tug technology, xws li sib nqus cov ntaubntawv povthawj siv, thiab tshuav ib nrab ntawm cov neeg siv cov ntseeg hais tias qhov no cov ntaubntawv povthawj siv, xws li cov xov xwm - muag nthas disk, poob mus rau hauv oblivion. Txawm li cas los, Yog hais tias koj delve rau hauv no qhov teeb meem, tej zaum koj yuav nrhiav tau hais tias cov chaw tsim tshuaj paus tseem tsim magnetic disks thiab tapes. Vim li cas? Qhov uas nws siv obsolete technology? Lub homphiaj ntawm qhov tsab xov xwm - magnetic cov ntaubntawv povthawj siv nyob txawv xov xwm, qhov zoo thiab qhov tsis zoo ntawm cov technology XX caug xyoo.

keeb kwm ntaub ntawv

Muaj ntau cov xov xwm qhov chaw qhia tias tus magnetic disks tau hloov lub magnetic tapes raws li ib tug ntau compact tsheb. Qhov no yog tsis muaj tseeb. Nyob rau hauv qhov tseeb, ib tug muag nthas disk - nws hloov ib lub lawj ntawm phaib. Thiab cov neeg sib tw tapes lawv yuav ua tsis tau rau ib tug yooj yim yog vim li cas - lawv muaj peev xwm incommensurable.

Tso tawm ntawm lub thawj magnetic disk yog manufactured los ntawm IBM, uas nyob rau hauv 1971 tsom lub ntiaj teb no lub muag nthas disk nrog ib lub cheeb ntawm yim nti thiab ib tug tsav peev xwm ntawm cov ntaubntawv povthawj siv thiab nyeem ntawv cov ntaub ntawv los ntawm qhov cia nruab nrab. Lub peev xwm ntawm ib tug muag nthas disk yog ib puas kilobytes, uas yog txaus rau cov cia thiab kis tau tus mob ntawm lub sij hawm. Ib tug ob peb xyoos tom qab ntawd nws los tshwm sim rau lub lag luam nruab nrab loj tsib thiab ib lub quarter nti, thiab nyob rau hauv 1981 lub ntiaj teb no-nrov Sony pab pawg neeg nkag tau rau hauv kev ua lag luam ib muag nthas disk nrog ib lub cheeb ntawm 3.5 nti. Xub thawj, lub volume yog 720 kilobyte muag nthas disk. Tab sis tom qab ntawd, los ntawm kev ua cov ntaubntawv povthawj siv ceev, muaj muaj thiab 1,44 Mb 2,88 Mb.

Thiab hais lus ntawm sib nqus cov ntaubntawv povthawj siv nyob rau hauv kev

ntaub ntawv hloov lwm lub tsev yuav nqa tawm tsis tsuas yog nyob rau hauv lub muag nthas disk, tab sis kuj nyob rau hauv cov zaj duab xis thiab cov txhav cab kuj. Lub hauv paus ntsiab lus ntawm cov ntaubntawv povthawj siv qhov kev txiav txim nyob rau hauv lub mos tawm yog paub rau tag nrho cov. Ntaubntawv povthawj siv rau cov magnetic cab kuj yog nqa tawm sequentially. Raws li, qhov kev nyeem ntawv yuav tsum rov qab. Nws yog rau daim kab xev drives thiab yog ib tug loj loj rho tawm. Tiam sis nws muaj nws cov zoo, vim hais tias, vim lub high ceev cov ntaubntawv povthawj siv, ib tug nruab nrab yuav cia ib tug loj npaum li cas ntawm cov ntaub ntawv. Piv txwv li pab kiag li lawm yog daim kab xev drives. Tab sis cov ntaub ntawv nyob rau hauv ib qho nyuaj xov xwm tso cai rau koj mus saib tau cov ntaub ntawv sai npaum li cas nrog kuv ob lub mechanisms - ib yam ntxaiv uas spins lub disc nto nrog rau cov ntaub ntawv thiab cov ntaub ntawv ntawm ib tug tsiv pickup lub taub hau.

Nyob rau hauv Crest ntawm nthwv dej

Yog hais tias lub peev xwm ntawm lub saj zawg zog nqus disk yog tas rau cov deg hauv cheeb tsam ntawm cov cab kuj, cov saj zawg zog zaj duab xis yuav qhov txhab nyob rau hauv ib tug spool nrog ib tug ntev ntawm ib nrab ib tug kilometer. Uas yog koom ua los ntawm cov chaw tsim tshuaj paus. Nyob rau hauv lub xyoo pua XXI, txaus siab nyob rau hauv lub drives yog tsis tsuas tsis zoo, tab sis, theej nce. Manufacturers yog tsim thiab kev txhim kho tshiab technologies rau cov pab kiag li lawm. Nyob rau hauv ib tug zoo li me me sib nqus daim kab xev nruab nrab tej zaum yuav sau los ntawm 0.5 mus rau 4 terabytes ntawm cov ntaub ntawv. Daim kab xev drives yog lug siv nyob rau hauv loj corporations rau cia database ntaub ntawv. Lub studios nyob rau hauv xov xwm muab tso rau lub films xa mus rau lub archive. Cov Thawj Coj ntawm loj Internet resources rau lub cartridges rau daim kab xev tsav mus cia backup luam ntawm tag nrho cov tseem ceeb qhov chaw. Thiab tag nrho cov no ua tsaug rau ob peb zoo qualities ntawm lub ntaus ntawv, uas muaj tseem tsis tau tau muaj peev xwm tshaj tej technology.

1. Ib tug lossis loj cov ntaubntawv povthawj siv ceev nyob rau hauv ib tug me me pob cab kuj.
2. Tsis tshua muaj zog noj piv rau zoo xws li txhawb peev xwm loj.
3. High cia siab rau thiab stability.

Triumph, uas tsis tau xeem qhov chaw

Raws li koj paub, ib tug monopoly ntawm lub lag luam muaj lub peev xwm los muab lawv tus kheej tus nqi, tab sis tau txais ib co neeg pej xeem nrog txoj kev loj hlob ntawm cov khoom uas yog tshwj xeeb, nws yog tsis tsim nyog. Nws muab tawm hais tias lub me ntsis-paub lub tuam txhab Iomega Zip nkag mus hauv lub NWS technology ua lag luam nyob rau thaum xaus ntawm lub XX xyoo pua nrog lub innovation uas tsis tau muaj analogues nyob rau hauv lub ntiaj teb no. Twb hais tsav thiab 3.5-nti muag nthas disk drive thereto, uas sau cov ntaub ntawv me me ntawm 100, 250, thiab 750 megabytes ib cov cab kuj. Tus nqi ntawm xws li ib tug ntaus ntawv tau raug li overstated uas tsis tau tsuas yog neeg zoo tib yam, tab sis kuj loj tuam txhab xav refrain los ntawm muas. Vim cov uas tsis muaj kev thov tsim yog tsis tam sim ntawd paub hais tias ib tug puas muag nthas disables tus tsav. Tsim technology tiv thaiv tau tus laser sau ntawv, cov ntsiab lus ntawm uas twb tsis khaws cia tsis pub leejtwg paub los ntawm lwm cov manufacturers.

Ntaus ntawv thiab saj zawg zog cia xov xwm tsim

Lo lus "muag nthas" twb muab tau los ntawm cov lus Askiv lo lus diskette, uas nyob rau hauv lem coj mus rau ib tug txo ntawm lub muag nthas disk. Txhais muag nthas yog "saj zawg zog." Nyob rau hauv lub kawg, lus - ib tug muag nthas disk. Yuav ua li cas yog lub npe - txheeb. Nws tseem mus to taub nws cov qauv. Lub hauv paus ntsiab lus ntawm cov lag luam yog txo mus rau lub xub ntiag ntawm lub chaw ntaus cim rau cov nyiaj them yug nto thiab lub taub hau, muaj peev xwm ntawm cov ntaubntawv povthawj siv thiab nyeem ntawv, uas yog nyob rau hauv lub tsav. Nyob rau hauv tas li ntawd, tus tsav yog muab tso rau ib tug tshwj xeeb ncej, uas yog koom nyob rau hauv kev sib hloov ntawm lub muag nthas disk. Mus saib tau hauv magnetic cab kuj nto los ntawm ib tug tshwj xeeb qhov rais diskettes, uas nws ntev tso cai rau lub taub hau yuav tsiv mus nyob thoob plaws lub voos kheej-kheej ntawm lub disc nto. Yuav kom tiv thaiv cov magnetic nto yog kev tiv thaiv los ntawm ib tug tshwj xeeb qhov rais shutter, uas yog qhib mechanically los ntawm inserting ib diskette nyob rau hauv ib tug tsav. Tsis muaj shutter ntawm tus dais kev ua tau zoo tsis yog cov, tab sis tej zaum yuav raug nyob rau hauv kis ntawm tus nto, txij li thaum lub sib nqus disc qauv muaj peev xwm ua rau neeg nyiam ua hmoov av.

Lub hauv paus ntsiab lus ntawm cov lag luam thiab me me oddities

Lub hauv paus ntsiab lus ntawm lub magnetic cov ntaubntawv povthawj siv txheej rau ib tug saj zawg zog cab kuj theej interesting. Nyob rau hauv tas li ntawd mus cov ntaubntawv povthawj siv, tus ntaus ntawv muaj ob tug tswj lub taub hau, uas yog nyob qab lub ntsiab thiab offset laterally los ntawm txhua lwm yam. Lawv ua hauj lwm yog los tiv thaiv cov overwriting ntawm cov ntaub ntawv nyob rau hauv lub lem, nyob ze rau cov ntaubntawv povthawj siv. Yog hais tias lub magnetic lub taub hau yog sau ntawv muaj zog momentum cuam tshuam rau cov lus qhia pom muaj, lub taub hau tswj qhov kev hloov no overrides. Nws zoo heev coj txawv txawv los ntawm sab nraum. Tom qab tag nrho, yog hais tias peb los sib piv cov hard disk, koj yuav pom tias nws muaj tsuas yog ib lub taub hau rau txhua disk chaw. Lub fact tias cov ntaubntawv povthawj siv taub hau, ua-nyob rau hauv muag nthas disk drive tsis muaj lub high-zaus kev tsis ncaj ncees vim yog lub complexity ntawm nws tsim. Yog li ntawd, ib tug yooj yim thiab pheej yig tshuaj tau pom.

Lub xaav technology nrog rau kev ua lag luam NWS

Cia li ob peb lub xyoos dhau los nrog rau cov purchase ntawm ib tug tus kheej lub computer ib tug yuav tsum cwj pwm ntawm cov system blocks yog muag nthas disk drives. Tiam sis txaus siab nyob rau hauv lub ntaus ntawv cov neeg siv sai sai extinguished. Thiab tam sim no, lub xub ntiag ntawm ib tug 3.5-nti Drive hais tias tus tswv ntawm lub PC muaj ib tug tsis muaj zog computer. Yog vim li cas rau qhov no disappearance muag nthas drives los ntawm kev ua lag luam ntau heev. Ntawm no yog ob peb tug lawv.

1. Ntiav cov ntaubntawv povthawj siv peev xwm. Nyob rau hauv qhov tseeb, koj tsis tau sau txawm ib zaj kwv txhiaj rau tus disc.
2. Lub unreliability ntawm cov ntaub ntawv cia. Lub muag nthas disk yog demagnetized nyob rau hauv tus ntawm muaj zog sib nqus teb. Piv txwv li, ib tug ib tsav mus rau lub trolley los yog subway muaj peev xwm teeb txheeb muag nthas disk.
3. Txawm stupidity, launched nyob rau hauv lub xov xwm SSD-drives manufacturers txog cov txaus ntshai los ntawm magnetic hard disk drives, thiab tag nrho cov no technology, muab nws tau.

Kev Nyab Xeeb thawj

Nws kuj zoo li coj txawv txawv, tab sis ib tug muag nthas disk yog heev nrov nyob rau hauv US tsoom fwv cov koom haum, xws li cov thawj tswj saib xyuas. Sib Nqus disk rau cov neeg siv authentication thaum koj teev rau hauv cov kev tswj system. Thaum lub ntiaj teb no tau tsiv mus rau USB-daws, America siv cov technology ntawm lub xeem caug xyoo. Qhov no mus kom ze yog piav los ntawm tus fact uas ntau heev, noj muaj lub USB-qhov tseem ceeb, lub fraudster muaj kev nkag tau mus rau classified cov lus qhia. Muaj ntau feature films qhia qhov teeb meem nyob rau hauv zaj dab neeg.

Nrog magnetic disks txhua tsav txhua yam. Nws plays ib qho tseem ceeb luag hauj lwm ob leeg zoo thiab qhov tsis zoo ntawm saj zawg zog tsav. Nyob rau hauv tas li ntawd mus tsis muaj nqi, loj me me, rewriting tuition, ceev nyeem, paub cov cab kuj ntawm tej kev khiav hauj lwm qhov system tsis muaj cov neeg tsav tsheb thiab cov kev pab muaj xws li lub teeb tso zis ntawm cov cab kuj tsis. Lawm, tsis muaj tus tau rov qab. Qhov no yog lub ntsiab kom zoo dua ntawm lub muag nthas disk. Nyob rau hauv cov ntaub ntawv ntawm ib tug thaum muaj xwm ceev lub tsheb yog ib qho yooj yim mus ua kom puas, nrog rau ntaub ntawv tseem ceeb. Tau lub tshiab tseem ceeb yuav tsis tau yooj yim, nws yog txaus rau rov hais dua mus rau lub Security Service ntawm cov qauv.

Cov kev kawm ntawv system

Tab sis Lavxias teb sab cov me nyuam nyob rau hauv diskettes paub ntau tshaj lawv niam lawv txiv. Tom qab tag nrho, feem ntau Lavxias teb sab lub tsev kawm ntawv tseem muaj ib tug tshuav nyiaj li cas nyob rau hauv tus kheej computers nrog built-nyob rau hauv muag nthas disk drives. Thiab ua tsaug rau lub tsev kawm ntawv cov ntaub ntawv kawm nyob rau hauv computer science, uas rau ob peb xyoos muaj tsis undergone tseem ceeb cov kev hloov, tag nrho cov me nyuam kawm ntawv tau txais tswv yim kev txawj ntse thiab kev siv ntawm magnetic disks. Tom qab tag nrho, qhov ntim ntawm lub muag nthas disk yuav cia rau ib cov cab kuj, ob nkag-qib programming lus, nrog rau ib txoj hauj lwm rau tag nrho cov kev kawm ntawv xyoo. Thiab tsis muaj kev yooj yim kev txawj ntse ntawm THEEM PIB thiab Turbo Pascal programming lus, tsis muaj kev university yuav tsis qhib nws lub qhov rooj rau tus neeg thov.

Tool System Administrator

Nws yog ib tug muag nthas disk es tsis txhob ntawm USB-tsav los yog ib tug optical disc system administrator siv los mus hloov cov firmware ntawm system pab kiag li lawm, servers thiab tswj lub nruab. Nyob rau hauv tas li ntawd, ib tug muag nthas disk yog siv los hloov cov kev tso cai tseem ceeb, lub system kho vajtse configuration, configuration controllers thiab Certificate. Tsis hais qhov tseeb hais tias lub banal kev puas tsuaj tej PC BIOS yuav kho yog los ntawm kev txhais tau tias ntawm ib tug muag nthas disk los yog ib tug programmer. Yog vim li cas rau lub active siv muag nthas disk muaj ntau ntau.

1. Yuav kom nyeem cov ntaub ntawv los ntawm qhov cia nruab nrab yog ua tau rau hauv lub tsav ntaus ntawv, uas yog tsis tsim nyog rau cov neeg tsav tsheb. Tsis foundations thiab configuration.
2. Pheej yig dua drives thiab xov xwm nrog tib txhaum kam nyob rau hauv kev ua lag luam rau xyoo tsis muaj dab tsi.
3. Tsis xav tau loj tagnrho ntawm cov ntaub ntawv - 1,44 MB rau Unix-raws li systems tsis muaj qhov tsim nyog cov ntaub ntawv los cia tseg.

Hais txog kev lom zem programmers

Vim lub fact tias cov qauv ntawm cov magnetic disk yog ib tug kauv, lub nyeem lub taub hau muaj lossi tsiv mus nyob rau saum npoo ntawm cov cab kuj. Nyob rau hauv cov ntaub ntawv no, lub stepping lub cev muaj zog, uas tsiv lub taub hau, tsim ib lub suab nyob rau hauv lub tsav, uas yog heev zoo hnov nyob rau hauv ib tug loj chav. Qhov no yog qhov programmers siv rau ntau xyoo. Siv ib tug ntawm cov uas tsis muaj-theem programming lus (Turbo Pascal los yog C +), siv tshwj xeeb commands peev xwm ua tau tswj Stepper ntaus cav ntawm serial thiab luv luv computer accesses rau ntau yam ntaub ntawv kaw nyob rau tag nrho disc. Muaj ntau yuav tsis ua si ib tug heev complex suab paj nruag uas muaj ntau hom drives, txhua tus uas ua hauj lwm pab raws li ib tug tib ntsuas. Nyob rau hauv cov xov xwm, koj yuav ua ntau me ntsis txog cov qhov no zoo ntawm kev lom zem.

Nyob rau hauv xaus

Tsuas yog ib tug hais tias: ib tug muag nthas disk, raws li ib qho nyuaj, ib yam nkaus thiab thaum ntxov sau tawm. Tom qab ua hauj lwm nyob rau hauv lub NWS sector txog 25 xyoo, muag nthas disks thiab nyuaj drives yog nyob rau hauv coob nyob rau hauv ntau qhov chaw ntawm tib neeg kev ua si. Nyob rau hauv tas li ntawd mus rau lub tsis zoo uas yog ntaus nqi mus rau cov ntaub ntawv no muaj, lawv muaj ib tug ntau ntawm cov zoo, uas yuav tsum tau pom thaum sim kom paub zoo dua cov technology. Lawm, peb yuav tsum tsis txhob las mees lub stupidity minded cov neeg uas tham txog lub txaus ntshai los ntawm txhav magnetic disk, thiab tag nrho magnetic cov ntaubntawv povthawj siv nyob rau hauv feem ntau. Tag nrho cov khoom nyob rau hauv loj qhov ntau nyob rau hauv cov kev ua lag luam tsis dhau ib tug muab ntawv pov thawj ua ntej koj tau mus rau lub counter.