Kuliyada Shabakada Maadow
Maamulka
Mawduucyadaada : 42
ka Qeeb Qaadashaadaada : 129
Mahadcelin : 3
Is Diiwaangalintaa : 18/11/2010
 | Subject: Casharka 19-aad: CD-ROM Drive-ka  Thu Feb 10, 2011 4:04 am | |
| CD-ROM Drives(Compact Disk-Read Only Memory)[You must be registered and logged in to see this image.]_[You must be registered and logged in to see this image.]
Sawir muujinaya CD-ROM
Drive (bidix) iyo saxanka CD-ga (midig)CD-ROM Drive-ku waa halka kumbiyuutarka laga
geliyo saxanka wareegsan ee loo yaqaan CD-ga ee kumbiyuutarrada
lagu isticmaalo. Ereyga CD-ROM wuxuu u taagan yahay "Compact
disk - Read Only Memory" taasoo muujinaysa samayska iyo
isticmaalka saxanka CD-ga. "Compact Disk"
waxay muujinaysaa in saxanka CD-gu uu samays ahaan yahay mid adag
oo isku cufan oo aan si fudud loo qalloocin karin iyadoo aan
dhibaato loo gaysan. "Read Only Memory" waxay
muujinaysaa in saxanka loogu talagalay in wixii akhbaar ah ee ku
jira laga soo akhristo oo kaliya ee aan wax lagu qori karin.
CD-ROM-ku muddo dheer ayuu sidaa u shqayn jiray oo isticmaalkiisu
uu ku koobnaa oo in wax laga soo akhristo oo kaliya, laakiin
arrintaasi waxay wax weyn iska beddeleen markii ay soo baxeen
noocyada CD-R iyo CD-RW oo ah saxammo loogu talagalay in wax lagu
qoro waxna laga soo akhriyo. Noocyadaas waan ka hadli doonnaa
hadduu rabi idmo.
Marka la eego Windows, CD-ROM Drive-ku ma laha xaraf go'an oo si
joogto ah astaan ugu ah, laakiin waxaa astaan u noqda hadba
xarafka ugu horreeya ee bannaan. Sidaa darteed waxaa laga yaabaa
inaad aragto CD-ROM uu astaan u yahay xarafka D:
iyo mid kale oo uu astaan u yahay xarafka E: ama
F: iwm.Baaxadda iyo cabbirka CD-ROM-kaBaaxadda CD-ROM-ka waxaa, sida [You must be registered and logged in to see this link.]-ga iyo Floppy Disk-ga, lagu cabbiraa Byte, KB
(kilobyte) iyo MB (megabyte). Haddaad u baahan tahay faahfaahin
dheeraad ah oo ku saabsan cabirradaas iyo waxa ay kala yihiin
fadlan fiiri Casharka
14-aad gaar ahaan qaybta "Baaxadda
Hard Disk-ga".
Saxanka CD-ROM-ka cabbirkiisu (dhexroorka) waa 4.72 inch
(4.72") oo u dhaganta 12 cm, dhumucdiisuna waa 1.2 mm. Xagga
baaxadda waxay CD-ROM-yada caadiga ahi qaadaan 650 MB, waxaase
jira qaar ay baaxaddoodu intaa ka badan tahay oo qaada 750 MB in
kastoo kuwaas isticmaalkoodu uusan badnayn.Muhiimadda CD-ROM Drive-kaCD-ROM Drive-ka muddo yar oo sanado ah ayay ku
qaadatay in uu ka mid noqdo qaybaha asaasiga ah ee inta badan
kumbiyuutar kasta la socda. Sidaan ku soo aragnay [You must be registered and logged in to see this link.] CD-ROM-ku wuxuu xataa la wareegay inta badan hawlihii
uu Floppy Disk
Drive-ku qaban jiray taasna waxaa
keenay qiimaha CD-ROM-ka oo aad hoos ugu dhacay iyo samayntiisa
oo iyaduna aad fudud. Intaa waxaa sii dheer baaxadda program-yada
kumbiyuutarka la geliyo oo aad sare ugu kacday tasoo keentay in
CD-ROM-ku uu la wareego hawsha program gelinta kumbiyuutarka
(Software Installation). Waayo halkii CD-ROM oo nooca caadiga ahi
wuxuu la qaad yahay qiyaas ahaan 451 Diskette. Tusaale ahaan
program-ka "Windows 98 Second Edition" oo laga
reebay dhammaan waxyaabaha dheeriga ah ee la socda ayaa
baaxaddiisu waxay tahay 120 MB wuxuuna u baahanayaa 84 Diskette.
Si program-kaas oo Diskette-yo ku jira aad kumbiyuutar u geliso
waxaad u baahan tahay inaad 84 Diskette marba mid geliso, taasoo
sida aad garan karto ah arrin aad u adag. Sidaa darteed
shirkadaha program-yada sameeyaa waxay program-yadooda iibiyaan
iyagoo ku jira CD-ROM. Taasi waxay CD-ROM-ka ka dhigtay qayb
asaasi ah oo aad muhiim ugu isticmaalka kumbiyuutarka.
CD-ROM-ka hawlaha loo isticmaalo ka mid ah:
- Kumbiyuutar gelinta program-yada
cusub (Software Instalation)
Arrinta ugu muhiimsan ee CD-ROM-ka ka dhigtay qayb lagama
maarmaan u ah kumbiyuutarka waa program-yada cusub oo
intooda badan la iibiyo iyagoo ku jira CD-ROM oo kaliya.
Haddii kumbiyuutarkaagu uusan lahayn CD-ROM kuuma
suurtoobayso inaad isticmaasho inta badan program-yada
ganacsiga ah ee maanta isticmaalo. Waa dhif iyo naadir in
la arko program-yo cusub oo Diskette-yo ku jira, hadddii
ay jiraanna waa kuwo aad u yar yar.
- Kumbiyuutar gelinta program-yada
ka shaqaysiiya qalabka kumbiyuutarka lagu xiriiriyo (Driver
installation)
Inta badan qalabka kumbiyuutarka lagu xiriiriyo
waxay adeegsadaan CD-ROM si ay kumbiyuutarka u geliyaan
program-yada la socda ee qalabkaas ka shaqaysiiya ee loo
yaqaan Drivers-ka. Qalabka CD-ROM-ka noocaan u adeegsado
waxaa tusaale ahaan ka mid ah daabaceyaasha (Printers),
Monitors-ka, Scanners-ka, Sound Cards-ka, Joysticks-ka,
Gamepads-ka iwm.
- Kaydinta iyo xafidaadda program-yada
iyo akhbaaraha muhiimka ah (Backup)
Markii ay soo baxeen noocyada CD-R iyo CD-RW oo
suurtogal ka dhigay in CD-ga wax lagu qoro, ayaa waxaa
billaabatay in noocyadaas CD-ga ah loo adeegsado in lagu
keydsado koobi ka mid ah program-yada iyo akhbaarta
muhiimka ah, iyadoo arrintaas loo adeegsanayo qalabka loo
yaqaan "CD Burner".
shaabahaa Hard
Disk-ga iyo [You must be registered and logged in to see this link.] wuxuuse uga duwan yahay habka saxanka akhbaarta loogu
qoro iyo habka looga soo akhriyo. Qaybaha uu CD-ROM Drive-ku
dhismo ahaan ka kooban yahay waxaa ka mid ah:
- Head Assembly
- Head Actuator Mechanism
- Spindle Motor
- Connectors
doonnaa.
- Head AssemblySida aad
la socoto CD-ga hal dhinac ayaa akhbaarta looga qoraa,
sidaa darteed CD-ROM Drive-ku wuxuu leeyahay hal Head oo
wax ka soo akhriya dhinaca ay CD-ga akhbaartu uga qoran
tahay. Head-ka CD-ROM Drive-ku wuxuu ka kooban yahay
qaybo la isku dhisay (Assembly) wuxuuna u shaqeeyaa si ka
duwan sida ay u shaqeeyaan kuwa Hard Disk-ga iyo FDD-ka.
Taasna waxaa u sabab ah farsamada uu CD-ROM Drive-ku
adeegsado si CD-ga akhbaar loogu qoro ama looga soo
akhriyo oo ka duwan tan Hard Diska-ga iyo FDD-ka. Si
akhbaar loogu qoro CD-ga waxaa la adeegsadaa ilays
xooggan (laser) oo lagu gubo hadba meesha la rabo in wax
lagu qoro.
Si CD-ga akhbaar looga soo akhriyo waxaa oogada CD-ga
lagu shidaa iftiin lagu toosiyo hadba meesha la rabo in
akhbaarta laga soo akhriyo. Marka uu iftiinkaasi ku dhaco
oogada CD-ga, wuxuu CD-gu dib u soo celiyaa qayb ka mid
ah iftiinkaas. Xaddiga iftiinka ee uu CD-gu soo celiyaa
waxay ku xiran tahay hadba meesha uu iftiinku ku dhaco.
Iftiinka uu CD-gu soo celiyo ayaa waxaa loo rogaa awood
koronto, taasoo loo sii turjumo akhbaartii loo baahnaa.
Head-ka CD-ROM-ku ma taabto oogada CD-ga ee kor ayuu uga
kacsan yahay, maadaama uu CD-ROM Drive-ku adeegsado
iftiin marka uu CD-ga wax ka soo akhrinayo. CD-ga oo
wareeganaya ayuu Head-ku dul socdaa oo uu ilayska ku
shidaa isagoo u soconaya horay iyo gadaal. Wareegga CD-ga
iyo socodka Head-ka ayaa waxay keenayaan in ilaysku uu ku
dhaco hadba meel cusub oo ka mid ah oogada CD-ga.
- Head ActuatorHead Actuator-ku waa qaybta dhaqaajisa Head-ka
oo geysa hadba meesha la rabo in wax lagu qoro ama wax
laga soo akhriyo. Head Actuator-ka CD-ROM Drive-ku wuu
gaabiyaa marka la garab dhigo Head Actuator-ka Hard
Disk-ga, arrintaas waxaan uga hadli doonaa casharrada
dambe ee aan uga hadli doono xawaaraha CD-ROM Drive-ka.
- Spindle Motor
Spindle Motor-ku waa qaybta
wareejisa saxanka CD-ga ee markaa ku jira CD-ROM
Drive-ka. Akhbaarta CD-ga ku keydsani waxay ku qoran
tahay wareegyo aanay ishu arki karin oo loo yaqaan
Tracks, sida kaaga muuqata sawirka tusaalaha ah ee hoose:
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Sida sawirka kaaga muuqata Track-yadu waxay u kala weyn
yihiin sida ay u kala korreeyaan. Sidaa darteed akhbaarta
ku qorani waxay u kala badan tahay sida ay u kala weyn
yihiin. Haddaba si Head-ku uu akhbaar uga soo akhriyo
Track-ga ugu weyn, wuxuu u baahan yahay wakhti ka badan
inta ay ku qaadato Tracka-ga ugu yar. Taasi waxay keentay
in xawaaraha Spindle-ku uu isla beddelo cabbirka Track-ga
markaas wax laga soo akhrinayo. Mar kasta oo cabbirka
Track-gu uu sii weynaadaba waxaa yaraanaya xawaaraha uu
Spindle-ku ku wareego, si Head-ka loo siiyo wakhti uu
akhbaarta ku soo akhriyo. Nidaamka noocaas ah waxaa loo
yaqaan CLV (Constant Linear Velocity). Ujeeddada
ugu muhiimsan ee nidaamka CLV-gu waa in xaddiga akhbaarta
uu Head-ku soo akhriyo halkii ilbiriqsi (second) ay isku
mid noqoto. Nidaamka CLV-ga waxaa isticmaala laga soo
billaabo CD-ROM-yadii ugu horreeyay ilaa kuwa uu
xawaarahoodu yahay 12X (xawaaraha CD-ROM-ka waan ka hadli
doonnaa).
Marka la eego Hard Disk-ga iyo FDD-ka, Spindle-koodu
wuxuu had iyo jeer ku wareegaa xawaare isku mid ah oo aan
isbeddelin, cabbirka Track-guna wax saamayn ah kuma laha
xawaaraha Spindle-kooda. Nidaamka noocaas ah ee uu ku
shaqeeyo Spindle-ka Hard Disk-ga iyo FDD-ka waxaa loo
yaqaan CAV (Constant Angular Velocity). Nidaamka
CAV-gu wuxuu isaguna xoogga saaraa in xawaaraha
Spindle-ku uu had iyo jeer isku mid ahaado, tasoo
keenaysa in akhbaarta uu Head-ku halkii ilbiriqsi
ku soo akhriyaa ay sii yaraato mar kasta oo cabbirka
Track-gu uu sii weynaadaba.
Markii xawaaraha CD-ROM-ku uu aad kor ugu kacay ayaa
waxaa farsamo ahaan adkaatay in xawaaraha Spindle-ku uu
isla bedbeddelo cabbirka Track-ga, waayo taasi waxay wax
weyn u dhintay xawaaraha guud ee CD-ROM-ka. Sidaa darteed
CD-ROM-yada uu xawaarhoodu yahay 16X iyo wixii ka
dambeeyay waxay qaateen nidaamka CAV (Constant Angular
Velocity) oo ah midka ay Hard Disk-ga iyo FDD-ku
isticmaalaan ee aan kor uga soo hadalnay. Nidaamka CAV-gu
wuxuu keenayaa in CD-gu uu had iyo jeer ku wareego
xawaare isku mid ah, laakiin akhbaarta uu Head-ku soo
akhriyo halkii ilbiriqsi (second) ayaa is bedbeddesha.
Waxaa kale oo jira qaar ka mid ah CD-ROM-yada oo
isticmaala labda nidaam ee CLV iyo CAV oo la isku daray
la iskuna celceliyey.
- Connectors
CD-ROM Drive-ku wuxuu xagga
fiilooyinka kala mid yahay Hard Disk-ga oo waxay run
ahaantii isticmaalaan fiilooyin isku mid ah. CD-ROM Drive-ka
waxaa sida Hard Disk-ga ku xirma oo kumbiyuutarka ku
xiriiriya laba fiilo oo kala ah:
- Power Connector oo
ah fiilada uu CD-ROM Drive-ku korontada ka qaato.
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Fiiladaasi waxay sida sawirka kaaga muuqata la
mid tahay fiilada uu Hard Disk-gu korontada ka
qaato waxaana isticmaala CD-ROM-yada ku dhex
dhisan santuukha kumbiyuutarka (Internal CD-ROM).
- Data interface Cable
Fiilada labaad ee CD-ROM
Drive-ka ku xiranta waa fiilada akhbaarta u kala
gudbisa CD-ROM Drive-ka iyo kumbiyuutarka intiisa
kale. Fiiladaasi waxay la mid tahay fiilada Hard
Disk-ga akhbaarta u gudbisa ee aan ku soo aragnay
Casharka
15-aad.
</li>
Casharka xiga waxaan hadduu rabbi idmo ku soo qaadan doonnaa
xawaaraha CD-ROM-ka.
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