VGA: worudzii waya, mutyairi, mumwe Graphics adapteri?

Vazhinji ano vanoshandisa makombiyuta, foni kana terevhizheni ukomba nemamiriro izwi akadai VGA. Chii - rimwe, mavhidhiyo kadhi, tarisisa, mutyairi, waya kana adapteri? Zvinosuruvarisa, vazhinji vedu tine nzwisiso yakajeka mubvunzo uyu, sezvo mumwe mutemo, kwete. Naizvozvo zvakafanira kuti vagare pasi pomureza ichi zvizere.

VGA: chii chiri Kazhinji?

Chokutanga, mashoko mashoma pamusoro mureza. Ari Mupfungwa yakazara VGA haina kutorwa yoga zvakamisa hurongwa pamusoro apa, sezvo chinhu chinokosha pakuderedza vhidhiyo inowanikwa mhando, pakutanga yakataurwa IBM nokuda makombiyuta avo.

Saka, muna kunzwisisa kwezvinhu kana playback mufananidzo kuchinjirwa kwaisanganisira uye "simbi" uye Software zvinoriumba, uye inowanikwa iri kushanda kudyidzana kwavo.

Nyaya mureza

Zvino mashoko mashomanana pamusoro chitarisiko vhidhiyo mureza VGA. Chii, chinguva kunzwisisa. Kokutanga mabikirwo Video Graphic Array wakatangwa IBM muna 1987 kusvika PS / 2 makombiyuta.

VGA-kunze adapteri, mukusiyana dzavo vamutangira uye vatsivi, nokuti yepamusoro mufananidzo yedzimudzangara rinoshandiswa (uye anoshandisa) ari analoginen chiratidzo. Asi munzira pane mubvunzo sei, nei zvaida kutanga mureza itsva. Kuti kunzwisisa chisarudzo ichi vanofanira kureva dzinokosha parameters ari mano pachavo.

Key Features

Wokutanga uye mumwe mukuru zvikonzero zviri yezwi mureza ichi, vanamazvikokota vakawanda rinonzi pfungwa kuti pakutanga zvakanga zvakakodzera kuti kuderedza uwandu waya dziri huru waya anogona kuva chokuita maitiro vezvikwata nomukombiyuta VGA Graphics adapteri akakodzera monitors, vakakwanisa zvakaitika zvakawanda mavara uye noruvara pane pamberi. Kana izvi kubudirira, uye wakakwirira nokugadziriswa mufananidzo.

The Graphics VGA adapteri zvino ane chimiro kuti zvinosanganisira zvinotevera zvinhu:

• Graphics controller kuchinjana mashoko pakati CPU uye vhidhiyo ndangariro inobva ikakuruma date akavhiyiwa;
• DRAM Video kuyeuka 256 KB, akakamurwa zvina ruvara rukoko;
• serializer VRAM date matomu kuti hutachiwana controller anoti;
• kupona controller nokuti rokutendeutsa chiyamuro Data kuti ruvara tsika inobva palette;
• synchronizer nokuti nokuchinja kudzora akaturikidzana uye nguva parameters pakati Graphics kadhi;
• Controller cathode-ray chubhu nokuda generating yaunonyanya kushandisa zviratidzo kuti Monitor.

Kunopiwa kuti hurongwa ane VGA-mutyairi inosiya vaifanira kupedza vana 640x480 pixels por padiki uye ruvara kudzika kusvika 32 matomu. Chokwadi, panguva chitarisiko mureza, zvechokwadi yaiva chimurenga. Asi nhasi unogona kuwana yepamusoro zvikuru chisarudzo kuti runowanikwa kushandisa digitaalinen ruzivo. Asi sezvo zvinoitika, kunyange panguva ino, haagoni discounted VGA mwero midziyo kombiyuta. Zvinorevei? Hongu, asi chii kuti mufananidzo yedzimudzangara, Sezvambotaurwa, chinhu analoginen Mureza inogona dzikwanise mamwe. Uyezve, kukura adapteri zviri ipfupi, uye kunogona revatema zvakananga motherboard, kana kuwedzera vhidhiyo kadhi.

Pano zvakafanira kuti ateerere kune chokwadi chokuti digitaalinen Mureza ane yakafara bandwidth, uye kupararira chiratidzo chakadaro anoshandisa MPEG yeEncoding kwemichina. Uye ichi, uyewo, kunoita kuti kurasikirwa yepamusoro.

VGA-monitors uye TVs

Sezvo kutanga chikuru mureza rakatanga kushandiswa nokushingaira, uye nhengo monitors, uye pashure - uye TV ukomba kuti inowanikwa (eg LCD mudziyo).

Nhasi chidimbu ichi kuti kureva zvose Graphics rudzi uye tarisisa, kusanganisira avo vanokwanisa kutsigira chisarudzo pamusoro 640x480 pixels, pasinei chikamu Hardware. Panguva kuitika padariro kukura, havasi kushanda kushandiswa, kunyange zvazvo pane imwe nguva vaiva dzakakurumbira chaizvo.

Graphics

Zvinenge zvose ano Graphics accelerators (Graphics kadhi), kana vari revatema kana discrete rutsigiro dzinokosha modes vanorondedzerwa inowanikwa uye vakagadzirira pamwe runoenzanirana outputs (zvengarava), izvo dzimwe nguva raireva uyewo D-Sub.

Nemamwe mashoko, vhidhiyo kadhi ingava shoma vhidhiyo outputs. Uye VGA-connector aripo iri fanira hwaro. Sezvineiwo, connectors izvi zvinogona kuwanika zveshure ukomba wakaiswa chawo dzakabatana uye kurutivi pamadziro Laptops.

vatyairi

It anoenda pasina vachiti hapana Graphics akisarareta hakushande kana yakakodzera mutyairi (VGA-mutyairi kwaisanganisira) kwaari.

Asi nokuti ano Graphics makadhi yokugadza kuzvidzora kwakadaro chirongwa hakudi kubva Database rokuvhiya gadziriro uye Linux nokugoverwa kubva Hardware vagadziri. Uyezve, nhasi zvikuru kushandiswa utariri maturusi kana kumhanyisa akagovera zvikuru nevanhu NVIDIA uye Radeon makadhi.

Chokwadi chokuti VGA-mutyairi kushanda zvakanaka, gamers zhinji zvinogona kuita marongero ari mutambo zviruva 640x480 mavhidhiyo muoti kana asiri mureza zvakasiyana. Chaizvoizvo, chete mamiriro ezvinhu anogona kuonekwa kana unobatanidza kombiyuta kana tablet kuti sandarara paneeli mukuru-tsanangudzo kana uri kushandisa VGA-waya (uye kwete chete pamwe chete mhando connector kumativi ose).

Mhando netambo uye adapters

Sezvo kubatana kusarudza rakasiyana zvachose mavhidhiyo interfaces anogona kuwanikwa zvikuru zvizhinji, woga inokosha vanorega pamusoro netambo pamwe adapters kuti rinogona kushandiswa kutendeutsa mufananidzo yedzimudzangara zano, izvo zvichaita kuonekwa uye kugamuchirwa, uye wokutepfenyurisa.

Somuenzaniso, ngatikurukurei VGA-waya nezvirwere akasiyana kuchinja. Pakati kiyi (kunze kwakajairika mhando) zvinogona kupatsanurwa:

• VGA-DVI (kushandiswa pane zvimwe makadhi Video kuti havana VGA connector Zvisinei, uye kuramba zvakakodzera anodawo modes);
• VGA-HDMI (zvinogona kushandiswa kubatanidza makombiyuta vakwegura kana Laptops kuti materevhizheni ano uye projectors);
• VGA-rca kana VGA- «AND tulip" (rakashandiswa maererano hwemazuva makombiyuta, kwete wakabatanidzwa pamwe connectors VGA, mutana TV kana kuongorora pamwe CRT CRT);
• VGA-HDMI-rca-Mini-Jack (kushanduka tichibatanidza rapfuura adapters mbiri maererano inzwi yedzimudzangara - Via VGA ruzha iri zvitange);
• VGA-S-Video (asingasviki aida kubatana kuita kuti TVs).

The inokosha mwero connector, akasarudzwa achiri sezvo DE15F, mune chero embodiments ane 15-mbambo connector rumwe rutivi, anogona fambisa chiratidzo kunobva interlaced kushanda pakuvheneka michina, sezvamakaropafadzwa munhu voltage shanduko unoenderana shanduko Nokupenya CRT (tarisisa pfuti danda kuchinyanya kana kinescope).

Brief pfupiso uye mhedziso

Ndizvo zvose kuti anouya kunzwisisa VGA. Chii? Kutaura zvazviri, ndiye inowanikwa, pane zvakakodzera zvakarurama kushanda kwayo nomumwe zvinoriumba. Uye sei zvaibvira kucherechedza, zviri chipo dzakawanda ano kadambari namano. Kunyange zvazvo vanhu vangangoramba pokumuka ruzivo izvi sokuti kujeka chaizvo, asi zvakadaro kure navo kupa hapana.

Zvinofanira akawedzera kuti mureza uyu, pasinei chimiro vateveri vake muchimiro chete inowanikwa Super VGA kana XGA, yasara zvikuru dzakakurumbira uye vakatsvaka rose uye marudzi ose mano, kusanganisira hrs, Laptops, TV ukomba, kana kunyange Mobile midziyo.