Idivayisi yekhadi lemidwebo yesimanje

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Manje cishe wonke amakhompyutha afakwe ikhadi lehluzo le-disc. Le divayisi idala isithombe esibonakalayo esibukweni sokuqapha. Le ngxenye ayikho kude nokulula, kepha iqukethe izingxenye eziningi ezakha uhlelo olulodwa olusebenzayo. Kulesi sihloko sizozama ukukusho ngokuningiliziwe ngazo zonke izingxenye zekhadi levidiyo lesimanje.

Ikhadi levidiyo liqukethe ini

Namuhla sizocubungula kahle amakhadi wegraffiti wesimanje, ngoba lawo ahlanganisiwe anokulungiswa okuhlukile ngokuphelele futhi, ngokuyisisekelo, akhelwe ku-processor. I-disc ye-discrete ye-discrete ivezwa ngesimo sebhodi lesifunda eprintiwe, efakwe ku-slot enwebekayo ehambisanayo. Zonke izinto ze-adaptha yevidiyo zitholakala ebhodini ngokwalo ngokulandelana okuthile. Ake sihlolisise zonke izingxenye.

Funda futhi:
Yini ikhadi lemidwebo elingabonakali?
Kusho ukuthini ukusebenzisa imidwebo ehlanganisiwe?

I-GPU

Ekuqaleni, udinga ukukhuluma ngemininingwane ebaluleke kakhulu ekhadini levidiyo - i-GPU (iprosesa lemifanekiso). Ijubane namandla ayo yonke insiza kuncike kule ngxenye. Ukusebenza kwayo kufaka phakathi imiyalo yokucubungula ehlobene nehluzo. Iprosesa lehluzo lithatha isenzo esithile, ngaleyo ndlela sinciphise umthwalo ku-CPU, likhulule izinsiza zalo kwezinye izinjongo. Ikhadi levidiyo lesimanjemanje, i-GPU enamandla kakhulu ifakwa kulo, ingadlula ngisho neprosesa eliphakathi ngenxa yobuningi bamakhompiyutha amaningi.

Isilawuli sevidiyo

Isilawuli sevidiyo sibhekele ukudala isithombe kwimemori. Ithumela imiyalo ku-digital-to-analog Converter futhi isebenza ngemiyalo ye-CPU. Izakhi eziningana zihlanganiswe ekhadini lesimanje: isilawuli sememori yevidiyo, ibhasi yedatha yangaphandle neyangaphakathi. Isakhi ngasinye sisebenza ngokuzimeleko komunye nomunye, sivumele ukulawulwa ngasikhathi sinye kwezikrini zokubonisa.

Imemori yevidiyo

Ukuze ugcine izithombe, imiyalo nezinto eziphakathi kungabonakali esikrinini, udinga inani elithile lememori. Ngakho-ke, kuyo yonke i-adaptha yehluzo kunenani lememori eliqhubekayo. Kungaba izinhlobo ezahlukene, ehlukile ngejubane labo kanye nemvamisa. Uhlobo GDDR5 njengamanje lwaziwa kakhulu, olusetshenziswa kumakhadi amaningi wesimanje.

Kodwa-ke, kufanelekile futhi ukucabanga ukuthi ngaphezu kwememori eyakhelwe ekhadini levidiyo, amadivaysi amasha futhi asebenzisa i-RAM efakiwe kukhompyutha. Ukuyifinyelela, kusetshenziswa umshayeli okhethekile ngebhasi le-PCIE ne-AGP.

Idijithali kusijikeli se-analog

Isilawuli sevidiyo sakha isithombe, kepha kufanele siguqulwe kwisiginali oyifunayo ngamazinga athile wombala. Le nqubo yenziwa yi-DAC. Yakhiwe ngesimo samabhlogo amane, amathathu abhekene nokuguqulwa kwe-RGB (obomvu, okuluhlaza okotshani nokuhlaza okwesibhakabhaka), kanti ibhulokhi lokugcina ligcina imininingwane mayelana nokulungiswa okuzayo kokukhanya nokukhanya kwe-gamma. Isiteshi esisodwa sisebenza kumazinga wokugqama angama-256 ngemibala eyodwa, futhi isiyonke, i-DAC ibonisa imibala eyizigidi eziyi-16.7.

Funda inkumbulo kuphela

I-ROM igcina izinto ezidingekayo zesikrini, imininingwane evela ku-BIOS, namatafula wesistimu ethile. Isilawuli sevidiyo asibandakanywa nganoma iyiphi indlela ngedivayisi yememori efundwayo kuphela; sitholakala kuphela yi-CPU. Kungenxa yokubeka kwemininingwane evela kwi-BIOS ukuthi ikhadi levidiyo liqala ukusebenza futhi ngaphambi kokuthi i-OS ilayishwe ngokuphelele.

Uhlelo lokupholisa

Njengoba wazi, iprosesa nekhadi lemidwebo liyizinto ezishisa kakhulu zekhompyutha, ngakho-ke zidinga ukupholisa. Uma esimweni se-CPU ukubanda kufakiwe ngokwahlukana, khona-ke emakhadini wevidiyo amaningi kufakwa irediyetha bese abalandeli abaningana bafakwa, okukuvumela ukuthi ulondoloze izinga lokushisa eliphansi ngaphansi kwemithwalo esindayo. Amanye amakhadi wesimanje anamandla ashisa kakhulu, ngakho-ke kusetshenziswa uhlelo olunamandla kakhulu lwamanzi ukuwapholisa.

Bheka futhi: Susa ukugcwala ngokweqile kwekhadi levidiyo

Izindawo zokuxhumana

Amakhadi wesimanje wezithombe ahlonyelwe kakhulu nge-HDMI eyodwa, i-DVI nesixhumi se-Display Port. Lokhu okutholakele kuyithuthuke kakhulu, kushesha futhi kuzinze kakhulu. Ngayinye yalezi zinxephezelo inezinzuzo nezinzuzo zayo, ongafunda ngazo ngokuningiliziwe ezincwadini ezikuwebhusayithi yethu.

Imininingwane engaphezulu:
Ukuqhathanisa i-HDMI ne-DisplayPort
Ukuqhathanisa kwe-DVI ne-HDMI

Kulesi sihloko, sihlole ngokuningiliziwe ukusetshenziswa kwekhadi levidiyo, sahlola ngokuningiliziwe isakhi ngasinye futhi sathola ukuthi liyiphi indima kulolo cingo. Siyethemba ukuthi imininingwane enikeziwe ibilusizo futhi ungafunda okuthile okusha.

Bheka futhi: Kungani ngidinga ikhadi lemifanekiso

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