Ithelevishini - kungcono ... Hlobo luni ithelevishini?

Isikhathi esingaphezu kwengxenye leminyaka ithelevishini - lena ngenye yezindlela eziyinhloko ukuletha ulwazi kubantu abaningi ngesikhathi esisodwa, kanye indlela uphumule ngemva kosuku bese nijabula ngempelasonto.

intuthuko Technical ihamba ngokukhulu ukushesha, futhi kushintshwa izinhlobo yezokusakaza, ithelevishini kanye ukutholakala emphakathini.

Ukuthola TV waqala

Idethi okufanele ekuqaleni Countdown ithelevishini KwabaseSoviet Kwakugxile Khona - lokhu April 29, 1931, lapho ithelevishini isithombe sokuqala ukusakaza.

Kusukela ngaleso sikhathi, ukuthuthukiswa ubuchwepheshe hhayi emi namanje. Uma ngezikhathi Soviet, amathelevishini amabili ayengoMahaloni okusho ukunethezeka nomkhaya nasekushiyeleni izingane zabo ubukele omoya kusihlwa kusiteshi olulodwa wonke umndeni (futhi ngezinye izikhathi omakhelwane), ngeke kusimangaze ubani emsakazweni ku-tablet, noma ikhompyutha ephathekayo kuphi nge-inthanethi.

TV eliwumhlaba

into Mhlawumbe, main Russian TV - kubalulekile. ukuphinda zwi isignali engenayo - zokusabalalisa kuyo yonke imizi zemibhoshongo TV efakiwe.

Ngenxa yinye mass, futhi lolu hlobo ukusakaza, iziteshi esemqoka ithelevishini baye zitholakale izakhamuzi Russia, ngisho nangezindlela ezincane, ezindaweni ezikude.

Ukuze uthole isignali emoyeni ekhaya, udinga ukusetha ngokwakho antenna bese uxhuma ku-TV. Ungasebenzisa futhi i-wabelane, antenna elakhiwa abantu abaningi, uma uhlala e elingaphansi kwesakhiwo sokuhlala.

ithelevishini Terrestrial kuyinto analog, kodwa muva nje yaqala ukusakaza ngokushesha esinembile, kusakata ngetinombolo kubahlali. Ukuze uthole digital TV eliwumhlaba, udinga TV elikwazi isignali usuke esakhelwe kusukela analog kuya yedijithali. Uma lokhu, ungakwazi nezipesheli TV tuners (amabhokisi usethe-top-TV).

Ngenxa yokudlanga kokuxhashazwa jikelele we-TV eliwumhlaba posted on ukukhangisa lokho elikushoyo kusisiza ukumboza ehlukahlukene yasakazwa abathengi.

cable TV

Ngokuya Ukusabalala izilaleli, ithelevishini usesikhundleni niche malungana ether. Inhloso Its main - hhayi lokusakaza mass nethelevishini ukuletha inani elikhulu ngangokunokwenzeka lababukeli nezinto ezinhlobonhlobo kanye nezidingo zabantu nge izithakazelo ezahlukene.

Iziteshi Cable TV libhekene ezihlukahlukene ezahlukene ngokuphelele. Labo nesithakazelo kwezemidlalo engingayenza ukubuka ukusakazwa bukhoma imincintiswano ehlukahlukene. Imikhaya enezingane kukhona ekhethekile yezingane eziteshi zemfundo. Kukhona i-TV, imini nobusuku ayibonisi izinhlelo izindaba, amabhayisikobho, ama-video omculo noma ukuzijabulisa.

Ukuze uxhume cable TV udinga uxhumane no-opharetha wendawo (ngokuvamile sihlinzeke izinhlelo kanye ne-Inthanethi). Uma uhlala esakhiweni sokuhlala, cishe izinkampani eyodwa noma ngaphezulu bazimisele bahlele ukuthenga futhi elula intambo indlu.

ithelevishini satellite

Satellite TV - lokhu kungolunye uhlobo lwesigemegeme ngokuletha ithelevishini kubabukeli. It bafeza ithelevishini ngosizo iziphuphutheki eziningi, indiza Umhlaba orbit.

Ukuze uthole isignali satellite ekhaya, kufanele uthenga antenna ekhethekile ( "satellite dish"), ngiyibeke phezu kophahla lwendlu noma emphemeni. Ukuze izakhamuzi of kwezinye izindawo akude kuwukuphela kwendlela lapho ithelevishini kufinyelele kuwo.

Cover iningi kobuso Umhlaba ngesathalayithi safinyelela indawo yabo ethile emzileni. Basuke esemgwaqweni yenkabazwe futhi ngesivinini yokuthi umbukeli uyozizwa njengomhubi zihlale at iphuzu elifanayo esibhakabhakeni.

Ngokungafani yezokusakaza, i-TV satellite uthola iholo eyisisekelo kusuka ukukhangisa kanye imali yobulunga kusukela ababhalisile. Muva nje, yokufuna iqoqo TV satellite kwakungelona ezingabizi ukuze wonke umuntu, kodwa isimo kancane kancane kokushintsha.

Online TV

Kule nkathi yama-internet ikuyo yonke indawo, i-TV ku-inthanethi - kungcono indlela ukuhlala ulwazi emkhakheni, ngisho nalapho wena ekhaya futhi iliphi igumbi nge-TV.

Ngaphezu ukutholakala, inzuzo enkulu ye interactive (inthanethi) TV ukuphathwa nezimo iziteshi zethelevishini okubhaliselwe, phakathi okuyinto thina Ungakhetha njalo labo abathanda okwamanje.

Enye inzuzo yokuhamba kwesikebhe lolu hlobo yezokusakaza - ukuntuleka ukubhekisela isikhathi ukusakaza. I obhalisile angangeza ayebeka ngayo izithakazelo zohlelo ukuba ume noma ukubuka okurekhodiwe kamuva.

Kanjani ukukhetha?

Kukhona isimo sokunquma eziningana ngawo ungakhetha bona kanjani uhlobo oluhle kakhulu ithelevishini.

- Umbhalo Imali. Manje kuwukuphela ikhebula satellite TV, kodwa kungase futhi avele ether emva ushintsho okwandile digital ithelevishini eliwumhlaba. Imali Cable TV njalo futhi ngokuvamile kuhlanganisa iziteshi 100 (ngaphezu ebalulekile eziyisisekelo). Inani iqoqo TV satellite kulawulwa isibalo iziteshi axhunyiwe.

- Izinsiza kusebenza. TV tower ne-antenna ukuthola TV eliwumhlaba emizini esungulwe yonke indawo futhi ngokuvamile akudingi ukuthengwa imishini ehlukile. Ukuze ezindaweni ezikude noma dacha nemizana ukhetho best ukuthenga isethi TV satellite. Ikhebula TV elula kunazo ukuze uxhumane wesevisi ye-inthanethi e-opharetha wakho ekhaya.

- isignali reception. Ukuze multi-storey izakhiwo isithombe esicacile kakhulu ibangelwa esebenzisa izintambo, kuyilapho ezweni kuyoba exhunyiwe kangcono i-satellite dish. Analogue TV eliwumhlaba kulabo zijwayele zisebenzisa TV ngemuva futhi akusho sinake ikhwalithi isignali.