Yiziphi kanye Nalokho Okuzozidingayo ku-PC yakho noma i-Tablet
Ngokwesiko, ukubukwa kwekhompiyutha kuye kwaba nenzuzo ngaphezu kwamanye ama-computer lapho kutholakala isinqumo. Lokhu kwaqala ukushintsha uma kuchazwe ithelevishini ephezulu echazwe kubathengi futhi ekugcineni yamukelwa nguhulumeni kanye nabasakazi. Manje i-HDTV kanye nabaqapheli bedeskithophu abaningi babelana ngesinqumo esifanayo kodwa amakhompyutha weselula amaningi abuye ahlomele izibonisi zemininingwane ephansi. Lokhu kushintshile kancane ngemuva kokuthi i-Apple iqale ukukhipha izibonisi zabo ezisekelwe ku-Retina kodwa manje ngezinga eliqediwe le-4K noma le-UltraHD, abathengi manje bathola ukubonisa okunikeza imininingwane engavamile kunakudala. Kunezimpendulo ezithile uma ucabanga ukuthola nokusebenzisa ukubonisa okungu-4K ngekhompyutha yakho.
Kuyini i-4K noma i-UltraHD?
I-4K noma i-UltraHD njengoba ibizwa ngokusemthethweni isetshenziselwa ukubhekisela ekilasini elisha lamathelevishini aphezulu aphezulu kanye nevidiyo. I-4K ibhekisela kwisinqumo esinqunyiwe somfanekiso wesithombe. Ngokujwayelekile, kungu-3840x2160 noma izinqumo ezingu-4096x2160. Lokhu kungenani izikhathi ezine ukulungiswa kwamazinga we-HD yamanje avela ngo-1920x1080. Ngisho noma lezi zibonisi zingahamba phezulu kakhulu, abathengi abanendlela encane yokuthola ividiyo engu-4K ekuboniseni kwabo njengoba kungekho-standard evamile yokusakazwa kwayo e-US okwamanje futhi abadlali be-Blu-ray bokuqala be-4K abasanda kuyenza emakethe.
Njengoba ividiyo ye-3D ingasuki ngempela emakethe yaseshashalazini yasendlini emhlabeni wonke, abakhiqizi manje babheka i-UltraHD njengendlela yokushukumisa isizukulwane esilandelayo se-electronics ekhaya kulabo abathengi. Kukhona inamba enkulu yama-4K noma i-UltraHD amathelevishini atholakalayo emakethe futhi ukubonisa kwePC nakho kuyinto evame kakhulu kuma-desktops ngisho nokuhlanganiswa kwamanye ama-laptops aphezulu. Ukusebenzisa lezi zibonisi kunezidingo ezithile, noma kunjalo.
Ama-Connect Connect
Enye yezinkinga zokuqala ukuthi amakhompyutha azozama ukuqhuba abahloli be-4K noma i-UHD bayoba yizixhumi zevidiyo. Izinqumo eziphakeme kakhulu zidinga inani elikhulu lomkhawulokudonsa ukuze kudluliselwe idatha edingekayo yesignali yevidiyo. Ubuchwepheshe bokuqala njenge-VGA ne-DVI abukwazi nje ukubhekana nalezi zinqumo ngokuthembekile. Lokhu kushiya izixhumi ezimbili zakamuva zevidiyo, i-HDMI ne- DisplayPort . Kumele kuqashelwe ukuthi i- Thunderbolt izophinde isekele lezi zincumo njengoba isekelwe kwezobuchwepheshe be-DisplayPort nezixhumi zezimpawu zevidiyo.
I-HDMI isetshenziselwa wonke ama-electronics abathengi futhi cishe iyoba uhlobo olujwayelekile kakhulu lwesikhombimsebenzisi ozobona ekuqaleni kokubukwa kwe-4K HDTV emakethe. Ukuze ikhompyutha isebenzise lokhu, ikhadi levidyo kuzodingeka libe ne-interface ehambisanayo ye- HDMI v1.4 . Ngaphezu kwalokhu, uzodinga nezintambo ezilinganiselwe ze-HDMI High Speed. Ukuhluleka kokuba nezintambo ezilungile kusho ukuthi isithombe ngeke sikwazi ukuhanjiswa esikrinini ngokuxazululwa okugcwele futhi sizobuyela ezinqumweni eziphansi. Kunesinye isici esingaphansi se-HDMI v1.4 ne-4K video kanye. Ikwazi kuphela ukudlulisela isignali ngezinga lokuvuselela lika-30Hz noma ozimele ezingu-30 ngomzuzwana. Lokhu kungase kwamukeleke ukubukela ama-movie kodwa abasebenzisi abaningi bekhompyutha, abadlali abadlala ngokukhethekile, bafuna ukuba okungenani ama-60fps. Ukucaciswa okusha kwe-HDMI 2.0 kulungisa lokhu kodwa kusengavamile kumakhadi amaningi wokubonisa we-PC.
I-DisplayPort yinye enye inketho engase isetshenziswe yizibonisi eziningi zekhompyutha namakhadi wevidiyo. Nge-Specification ye-DisplayPort v1.2, isignali yevidiyo phezu kwehadi elihambisanayo lingasebenzisa isignali egcwele ye-4K UHD kuze kufike ku-4096x2160 ngombala ojulile no-60Hz noma ozimele ngemizuzwana. Lokhu kuphelele kubasebenzisi bekhompuyutha abafuna izinga lokuvuselela ngokushesha ukuze banciphise ukucindezeleka kwamehlo futhi bakhulise ukunyakaza kokuhamba. Ukuphazamiseka lapha ukuthi kusekhona ama-hardware amaningi ekhadini le-video ngaphandle lapho engenawo ama-port ahambisana ne-DisplayPort version 1.2. Lokhu kungase kusho ukuthi uzodinga ukuthuthukisela ekhadini elisha lehluzo uma ufuna ukusebenzisa enye yeziboniso ezintsha.
Ukusebenza kwekhadi levidiyo
Ngamakhompyutha amaningi okwamanje usebenzisa ama-1920x1080 ama-resolution wokubonisa ama-high-definition noma aphansi, akubanga nesidingo esikhulu samakhadi wehluzo esezingeni eliphezulu. Yonke inqubo yegrafu noma ihlanganiswe noma izinikezele ingasingatha umsebenzi wevidiyo oyisisekelo ezinqumweni ezintsha ze-4K UHD. Inkinga izofika ngokusheshisa kwevidiyo kubasebenzisi be-3D. Ngezikhathi ezine isinqumo sencazelo ephakeme ejwayelekile, lokho kusho izikhathi ezine idatha edinga ukucubungulwa ngekhadi legrafu . Amakhadi wevidiyo amaningi akhona angeke abe namandla okufinyelela lezo zincumo ngaphandle kwezinkinga ezinkulu zokusebenza.
I-PC Perspective ihlanganisa isihloko esikhulu esibheke ukusebenza kwehadi elikhona lehadi levidiyo elizama ukugijima eminye yemidlalo kuthelevishini ye-4K yokuqala nge-HDMI. Bathole ukuthi uma ufuna ngisho nokuzama ukugijima imidlalo kumafremu abushelelezi angu-30 ngomzuzwana, wena uqobo kakhulu kuyadingeka ukuthi uthenge ikhadi lemifanekiso elibiza imali engaphezu kwama-$ 500 . Lokhu akumangalisi kakhulu ngoba lawa makhadi adingekayo kakhulu uma uhlela ekusebenzeni izihloli eziningi ukuze uthole ukuboniswa okuphezulu kwesinqumo. Ukusetha okujwayelekile kakhulu kokubonisa ama-gamers yiziboniso ezintathu ze-1920x1080 ukudala isithombe esingu-5760x1080. Ngisho nokugijima umdlalo kuleso sinqumo kuveza kuphela okwesine kwemininingwane edingekayo ukuze isebenze ku-resolution 3840x2160.
Lokho kusho ukuthi ngenkathi abaqaphi be-4K bethola okungabizi kakhulu, amakhadi wegrafu asalandela ngemuva kwehadi levidiyo isikhathi esithile uma kuziwa ekugemeni. Kungenzeka ukuthi kuthathe izizukulwane zekhadi lesikrini sezinhlu ezintathu noma ezine ngaphambi kokubona izinketho ezingathengi ngempela ezingakwazi ukubhekana nokudlala ezinqumweni eziphezulu. Yiqiniso, cishe kuzothatha isikhathi eside ukubona izindleko zokuqapha zidonsa njengoba kuthatha iminyaka eminingi ngaphambi kokuboniswa kwe-1920x1080 yaba yinto engabizi kakhulu.
Ama-CODEC amasha wevidiyo adingekayo
Iphesenti enkulu yevidiyo esiyidlayo ivela emithonjeni engaphezu kwe-intanethi kunendlela yokusakaza yendabuko. Ngokunyuka kobukhulu bokusakaza kwedatha izikhathi ezine kusukela ekutholeni ividiyo ye-Ultra HD, umthwalo omkhulu uzobekwa phezu kwe-intanethi ngaphandle kokubalula ubungako befayela kulabo abathengayo futhi balayishe amafayela evidiyo yedijithali. Ngokuzumayo ithebhulethi yakho engu-64GB ingabamba kuphela ama-movie angu-1 njengamanye. Ngenxa yalokhu, kunesidingo sokwakha amafayela amaningi evidyo e-compact angadluliselwa ngokuphumelelayo phezu kwamanethiwekhi futhi agcine phansi ubukhulu befayela.
Iningi levidiyo ephezulu yokuchaza manje isebenzisa i-H.264 ividiyo ye-CODEC evela ku-Moving Picture Experts Group noma i-MPEG. Iningi labantu cishe libhekisela kulawa mafayela evidiyo ye-MPEG4. Manje, lokhu kwakungendlela ephumelelayo kakhulu yedatha yokufaka ikhodi kodwa ngokuzumayo ngevidiyo ye-4K UHD, i-Blu-ray disc ingaba nekota eyodwa kuphela yobude bevidiyo kuyo futhi isakaza ividiyo iqala izikhathi ezine ukuhamba komkhawulo ogcwalisa izixhumanisi zenethiwekhi ikakhulukazi ukuphela komsebenzisi ngokushesha kakhulu. Ukuxazulula le nkinga, iqembu le-MPEG laqala ukusebenza ku-H.265 noma ku-High Efficiency Video CODEC (HEVC) njengendlela yokunciphisa ubukhulu bemininingwane. Umgomo ukunciphisa ubukhulu befayela ngamaphesenti angu-50 ngenkathi ugcina izinga elifanayo lekhwalithi.
Okubi kakhulu lapha ukuthi okuningi kwe-hardware yevidiyo kunzima ukukhokhwa ukusebenzisa ividiyo ye-H.264 ukuze iphumelele ngangokunokwenzeka. Isibonelo esihle salokhu yizixazululo ze-Intel's HD Graphics kanye neView Sync Video . Ngenkathi lokhu kunzima ukukhokhwa ukuze kuphumelele kakhulu ngevidiyo ye-HD, ngeke kuhambisane neveli yehadiwe yokubhekana nevidiyo entsha ye-H.265. Kuyafana nangezixazululo eziningi zehluzo ezitholakala emikhiqizweni yeselula. Okunye kwalokhu kungaphathwa nge-software kodwa kusho ukuthi imikhiqizo eminingi ekhona ephathekayo njengamafoni ahlakaniphile namaphilisi angeke akwazi ukudlala ifomethi entsha yevidiyo. Ekugcineni lokhu kuzoxazululwa nge-hardware entsha nesofthiwe.
Iziphetho
Ababukeli be-4K noma i-UltraHD kanye nezibonisi bazovula iveli elisha lokuzibonakalisa kanye nemifanekiso eningiliziwe yama-computer. Yiqiniso, lokhu kuyoba into abathengi abaningi abangayikubona iminyaka eminingi ngenxa yezindleko eziphezulu ezihilelekile ekukhiqizeni ama-panels wokubonisa. Kuzothatha iminyaka eminingi ukubonisa futhi i-hardware yomshayeli wevidiyo ukuthi ikwazi ukukhokhela ngempela abathengi kodwa kuhle ukubona ekugcineni isithakazelo ekubonisweni okuphezulu okuphezulu emva kokuxazulula kwesilinganiso sezintambo zezintambo eziningi ezithengiswayo namanje zikhonjelwe izinqumo ngaphansi kwe-1080p ephezulu incazelo ividiyo.