VGA: he aha te ahua o te taura, te taata faahoro, te pūurutau whakairoiro?

Te nuinga o ngā kaiwhakamahi rorohiko o tenei ra, pūrere pouaka ranei pūkoro awhi fehangahangai ki te wā pērā i VGA. He aha te mea te reira - he turanga, kāri ataata, aroturuki, atekōkiri, taura pūurutau ranei? Kia aroha mai, i tokomaha o tatou he mārama māramatanga o tenei pātai, rite ki te tikanga, e kore. Na reira ko te reira e tika ana ki te noho i runga i tenei paerewa i roto i te kōrero atu.

VGA: he aha te mea te reira i roto i te tikanga whānui?

Tuatahi, he torutoru nga kupu e pā ana ki te paerewa. I roto i te tikanga whānui e kore e tangohia VGA motuhake te wāhanga whakarārangitia i runga ake, ka rite ki te momo atanga wae ataata wāhi, tuatahi whakawhanakehia e IBM mo ratou rorohiko.

Ko te kupu, i roto i te māramatanga o te hangarau anō image ranei whakawhiti ngā me "rino" me ngā wāhanga pūmanawa, a kei te mahi i te atanga i roto i to ratou pāhekoheko.

Ko te kōrero o te paerewa

Na he torutoru kupu e pā ana ki te ahua o te VGA paerewa ataata. He aha te mea te reira, i matau he iti. Hoki te wā tuatahi i te hangarau Video Graphic huānga i whakaurua e IBM i roto i 1987 ki PS / 2 rorohiko.

whāurutau VGA-i roto i, i roto i te rerekē ki o ratou matua, me riiwhi, mo te whakapakoko tuku-kounga tiketike whakamahia (ka whakamahia e) te tohu tairitenga. Otiia haere te ara i reira ko te pātai o te pehea, he aha ka mau te reira i te whakataki o te paerewa hou. Hei mahino tino tenei whakatau Me ki tirohia ki te tawhā taketake o te whakaaro ratou.

Āhuatanga matua

Ko te tuatahi, me te kotahi o nga āhuatanga matua o te whakawhitinga ki tenei paerewa, ka karanga te nuinga ngā tohunga te wāhi e te tīmatanga ko reira tika ki te whakaiti i te maha o te waea i roto i te taura matua taea e wae pūnaha hono mā te whāurutau whakairoiro VGA ki te aroturuki i tika, i taea ki te haere i te rota atu ngā tae me te atarangi atu nei i mua. A, no te te tutuki tenei, me he pikitia taumira teitei.

inaianei kua he hanganga e ngā te āhuatanga e whai ake nei i te pūurutau VGA whakairoiro:

• pūmana whakairoiro ki te taui raraunga i waenganui i te PTM me te mahara ataata e hāngai ana i runga i nga whakahaeretanga o moka raraunga;
• DRAM mahara ataata o 256 kb, wehea ki apa tae wha;
• paraire raraunga serializer VRAM hoki huanga tuku pūmana;
• huanga pūmana mō te tahuri raraunga tāuru ki uara tae i runga i te papatae;
• synchronizer mō te whakawhiti te mana o ngā papa, me ngā tawhā wa o te kāri whakairoiro;
• Controller ngongo pitoiho-hihi mo te whakaputa tohu tukutahitanga ki te aroturuki.

Engari e te pūnaha he VGA-taraiwa rau he taumira mōrahi o 640x480 pika ia īnihi me te hohonu tae o runga ki te 32 paraire. O te akoranga, i te wa o te ahua o te paerewa, ko reira pono he revolution. Ko tenei ra e taea e kitea e koe taumira nui teitei tutuki e te roto i te whakamahi o hangarau mamati. Otiia rite tahuri te reira i roto i, ara i tenei wā, e kore e taea te utu VGA paerewa o taputapu rorohiko. Eaha te auraa? Ae, engari he aha hoki te whakapakoko tuku, rite kua whakahuatia, he tohu tairitenga e taea te tahuri ki tetahi atu. I tua atu, kei te tino heke te rahi o te pūurutau, a taea te integrated reira tika i roto i te kaupapa, i roto i te tua ki te kāri ataata ranei.

Tenei te mea e tika ana ki te utu hoki whakarongo ki te meka e te tohu mamati he hōkaiipurangi whanui, a whakamahi tuku o te tohu taua te MPEG hangarau whakawaehere. Na tenei, i roto i te tahuri, arata'i ki te mate o te kounga.

VGA-te aroturuki me ngā pouaka whakaata

No te timatanga te whakataki o te paerewa taketake ki te whakamahi mātātoa, me te aroturuki i tēnā, me i muri i - me awhi TV e atanga (hei tauira pūrere LCD).

I teie mahana tenei whakarāpopototanga ki rawea te aratau whakairoiro katoa me te aroturuki, tae atu te hunga e taea ana ki te tautoko i te taumira o 640x480 pika, ahakoa o te wae pūmārō. I te wā o te whanaketanga o nāianei, e kore e whakamahia whakaritea ratou, ahakoa i tetahi wa i tino paingia.

whakairoiro

Fatata katoa hou accelerators whakairoiro (kāri whakairoiro), ahakoa e integrated ratou ranei te tautoko motuhake nga aratau taketake whakaahuatia atanga me rite rawa ki te ngä hāngai (tauranga), e e ētahi wā ka kīia ki hoki rite te D-Sub.

I roto i te mau parau te tahi atu, kia waiho te kāri ataata he torutoru whakaputanga ataata. Na ko reira i runga i te pūtake whakahauanga VGA-tūhono. Ratau, e taea enei tūhono te kitea i runga i te awhi muri whakaritea waeine pūtaketake me i nga taiepa taha o rorohiko.

taraiwa

haere te reira i waho e mea e tetahi o te whakatere whakairoiro kore e mahi te kore (ngā VGA-taraiwa) te atekōkiri e tika ana mo ia.

Ko e kore e hoki ki te kāri whakairoiro hou tāuta Me hōtaka taua mana i te pātengi raraunga o ngā pūnaha whakahaere, me tuwha Linux i kaiwhakanao pūmārō. I tua atu, i tenei ra whakamahia whānuitia taputapu whakahaere, ranei ngā te whakaterenga mo nga kāri NVIDIA me Radeon tino rongonui.

Ko te meka e te mahi tika te VGA-atekōkiri, taea kia maha gamers tautuhinga i roto i te tautuhinga kēmu o te aratau ataata 640x480 he rerekētanga kore-paerewa ranei. Mau, e taea te kite i te āhuatanga taua ka tūhono i te rorohiko pona ranei ki te whakamārama-teitei flat-rōpū, ki te kei te whakamahi koe i te VGA-taura (a kahore anake ki te momo taua o te tūhono i runga i ngā taha e rua).

Types o taura me whāurutau

Mai taea te kitea i te kōwhiringa hononga ki te atanga ataata tino rerekē rawa te rota, utu anake te mutu i runga i te taura ki te whāurutau e taea te whakamahi ki te tahuri te kaupapa image tuku, ka e kia mohio, ka manakohia, me te tuku.

Ka rite ki te tauira, kia whai whakaaro tatou he VGA-taura ki ngā momo rerekē o ngā whakawhitinga. I roto i te kī (i tua atu i te momo tikanga) e taea te kitea:

• VGA-DVI (whakamahia i runga i te tahi mau kāri ataata e kore e e whai i te tūhono VGA, ahakoa, ka mau tonu aratau whakahaere e tika ana);
• VGA-atanga (taea te whakamahi ki te hono rorohiko pakeke rorohiko ranei ki televisions hou me pūwhiti);
• VGA-RCA VGA- «tulip" ranei (whakamahia hoki hononga o ngā pūnaha rorohiko hou, e kore e rite rawa ki te tūhono VGA, te TV tawhito ranei aroturuki ki CRT CRT);
• VGA-Atanga-RCA-mini-Jack (rerekētanga whakakotahi i te whāurutau e rua o mua mō te hononga ki te tuku tangi - mā tangi VGA tuku te);
• VGA-S-Video (iti iho ui kōwhiringa hononga ki ngā pouaka whakaata).

Te tūhono paerewa taketake, whakaritea tonu rite DE15F, i roto i tetahi o nga taatou ko te tūhono 15-titi i runga i te ringa kotahi, Ka taea e tuku i te tohu e hāngai ana i runga i te hangarau matawai rīrapa, ai hāngai te huringa ngaohiko ki te huringa o te CRT wherikotanga (aroturuki pū kurupae kaha kinescope ranei).

whakarāpopototanga poto me whakatau

Ko te katoa e haere mai ana ki te māramatanga VGA. He aha te mea te reira? I roto i te meka, ko reira te atanga, nui atu i ona wae takitahi e tika ana mo te mahi tika. A pehea i reira taea ki te kite, he mea i roto i te nuinga o ngā pūrere rorohiko hou. Ahakoa te mea i te opuaraa mo te whanaketanga o enei hangarau ki kia tino marama, ano na matara atu i a ratou ki te hoatu e haere kahore tetahi.

kia tapiritia reira e tenei paerewa, ahakoa te ahua o ana kau muimuí i te puka o te atanga taua Super VGA XGA ranei, ano tonu tetahi o te rongonui tino me rapu i muri katoa i runga i te ao, me te i runga i ngā momo katoa o ngā pūrere, tae atu ki ngā PC, rorohiko, awhi TV, ranei ara pūkoro gadgets.