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Mene ne kwamfuta ta graphics katin

Wani lokaci, da yanar gizo za a iya samu da tambaya "abin ne graphics katin." Ko da yake shi alama maras muhimmanci, duk da haka, mutumin da ya yanke shawarar fahimta shi ya cancanci girmamawa, kamar yadda neman fahimtar na'urar da kwamfuta.

Kowa ya sani cewa aikin da duk sarrafa kwamfuta na'urorin dogara ne a kan binary misali na bayanai. Wa ya taɓa ganin jerin zeros da kuma wadanda samu a kan takarda ko kwamfuta allo, ya sani cewa akwai fahimtar cewa wani abu ne kusan ba zai yiwu. Wannan ne sauƙi bayyana, saboda duk wadannan Figures - wani irin micro-ayyuka ga transistors. Mene ne aboki na sama, da tambaya da abin da graphics katin? Direct! Abin da muka gani a kan allo ne wani ciki kwamfuta dijital data kõguna tuba zuwa recognizable mutum haruffa. Matsalar da wannan canji da aka kawai sanya wa video katin.

Bari mu ayyana manufar "abin ne graphics katin." Video adaftan (graphics katin) - a na'urar tsara don nuna graphics a kan allon (kama da yadda firintar kwafi a kan takarda). Haka kuma, ba duk dijital data, da kuma a cikin wani hanya shirya. Alal misali, idan ka yi kokarin nuna dijital rafi da wuya faifai dokokin via video, sa'an nan kome zai faru. All ciki data aka pre-ta shirya da CPU ga kowane manufa na'urar: suka rika nuna da ake so adireshin bas da aka nuna da kuma sauransu.

Amma duk da sama ya shafi kawai ga software bangaren, saboda haka, la'akari da haka daya mai gefe, ba za mu iya amsa daki-daki, ga tambaya "abin ne graphics katin." Jiki, shi ne wani fadada kwamitin cewa matosai cikin wani daidai soket (Ramin) na motherboard (mainboard). Kusan dukkan zamani video adaftan an tsara don da PCI Express.

Wadannan aka gyara su ne a kan allo: a graphics processor, mai kula, video katin ƙwaƙwalwar (RAM da ROM), bas haši da fitarwa connector, Dac, sanyaya tsarin, rakiyar abubuwa. A wasu model, da jerin za a iya kara da ƙarin aka gyara.

video sigogi an fi mayar da m da gyara mai hoto processor. Su a halin yanzu samar da yarjejeniyar biyu kamfanonin - AMD (ATI), da kuma NVDIA. A rabo na sauran kananan, ko da yake sananne Intel ne ma kokarin da'awar su share na kasuwa.

graphics processor (GPU) An samar da image na data bayar da aikace-aikace. Yawan transistors shi ya wuce wannan adadi a cikin tsakiyar processor, wanda ke nuni da ta irinta yi. Af, wannan shi ne dalilin da ya sa more kuma mafi za ka iya samun musamman shirye-shirye da yin lissafin a kan GPU. Eh, da kuma caca aikace-aikace ta hanyar da damar bayar (PhysX, DirectCompute) da dadewa koya yadda za ta yi amfani da albarkatun ga ilmin lissafi lissafin, ba-Dabarar.

Mai kula da aka kallafa hulda da memory, kazalika da ciki da waje bas. Bit bit ciki bas - shi ne na biyu adadi bayan wasan kwaikwayon GPU muhimmancin. Yanzu rarraba model daga 64, 128, 256 ko fiye da ragowa. Saya kasa da 128 da aka ba da shawarar.

Ƙwaƙwalwar a kan graphics katin ake bukata domin ajiya da kuma aiki na images halitta da GPU, don kaitsaye fitarwa zuwa allon. Halin da irin shigar da kwakwalwan kwamfuta, (DDR - GDDR5) da kuma girma. The fi sauri mafita zo da GDDR5. Modern wasanni bukatar akalla 512 MB na girma (dogara a kan saituna).

Kowane katin da aka, kamar yadda aka ambata riga, aka tsara don wani takamaiman hula. Yanzu yadu amfani PCI Express 16. Wani lokaci akwai PCI, amma mafi girma da kudin. Shekaru da dama da suka wuce, kwakwalwa mulki da AGP bas, amma Intel, kamar yadda ko da yaushe, a lokacin da za a warware shi.

Ya connector ma'anar da wani karamin aiki da abin da za ka iya aika wata sigina zuwa duba. Dama daga gare su: m D-sub, dijital DVI, ta zamani, HDMI, Display Port, da sauransu.

Wani lokaci da graphics katin ne wani ɓangare na CPU, a wannan yanayin, shi yana amfani da tsarin memory, da kuma fitarwa connector aka soldered a kan motherboard. Kwaikwayon na wadannan mafita bada waje takwarorinsu.

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