Kuyini bandwidth

igama elithi "i-bandwidth" ivame ukuxhumana amanethiwekhi we-elekthronikhi asetshenziswa. Lena esinye sezici ayisihluthulelo izinhlelo ezinjalo. Uma uthi nhlá kungase kubonakale sengathi umuntu omsebenzi wakhe ayixhunyiwe ne zokuxhumana imigqa, asikho isidingo ukuba siqonde lokho bandwidth siteshi. Eqinisweni, bonke kancane okungalungile. Abaningi zinekhaya computer siqu uxhumeke kwi- inthanethi. Futhi wonke umuntu uyazi ukuthi ngezinye izikhathi usebenze nge "World Wide Web" ngaphandle kwesizathu is ekunqandeni. Esinye isizathu salokhu ukuthi ngezinye nje band umhlinzeki isiteshi komkhawulokudonsa igcwele kakhulu. Umphumela - a Ukwehla ecacile futhi kungenzeka ukungasebenzi. Ngaphambi belinganisa welithi "komkhawulokudonsa", sebenzisa isibonelo, uvumela noma ubani ukuba baqonde ukuthi lisengozini.

Cabanga umgwaqo omkhulu edolobheni elincane futhi muzi ezinabantu abaningi. Esimweni sokuqala, iningi uklanyelwe elilodwa noma amabili imifudlana izimoto, ngokulandelana, ububanzi ezincane. Kodwa emizini emikhulu, ngisho onemizila ezine akumangalisi. Phakathi nalesi sikhathi isibalo izimoto, ukushayela ibanga elifanayo emigwaqweni ezimbili, yehluke. It kuncike izici ezimbili - ijubane kanye nenani izibopho. Kulesi sibonelo, umgwaqo - a isiteshi zokuxhumana, kanye Imishini Imininingwane izingcezu. Ngakwelinye ihlangothi, band ngamunye - isixhumanisi zokuxhumana.

Ngamanye amazwi, bandwidth ngokungaqondile likhombisa inani idatha angadluliselwa phezu isiteshi zokuxhumana per unit isikhathi. Ayanda lokhu ipharamitha, uyokhululeka ngokwengeziwe ukusebenza ngokusebenzisa kwakwakhe ezinjalo.

Uma izinga ukudluliswa zonke sobala (it kwandisa ne ukwehla isignali ukudluliswa ukubambezeleka), igama elithi "i-bandwidth" kuyinto kancane more xaka. Njengoba ukuthi isiginali lingadlulisela ulwazi ngendlela ethile yaziwa, yena uguqulwa. Zifakwe electronics, kungase imvamisa, ukuphakama kwawo namandla awo noma bashintshashintshe izwi okuxubile. Nokho, esinye sezici ukudluliswa wukuthi omunye kanye umqhubi esifanayo, pulses eziningana lungathunyelwa kanyekanye at amaza ezahlukene (ngaphakathi bandwidth Imininingwane zimi ukuhlanekezela ngaphakathi kwemingcele eyamukelekayo). Lesi sici ikuvumela ukwandisa umkhiqizo jikelele isixhumanisi ngaphandle kokushintsha ukubambezeleka. Isibonelo acacile nokuhlalisana imisindo - ingxoxo ngesikhathi esisodwa kubantu eziningana nge timbre ezahlukene. Nakuba wonke uthi, kodwa nangawo wonke amazwi kuyinto ngempela akachazeki.

Kungani isebenza inethiwekhi ngezinye izikhathi okwehlisa wakubona? Zonke kuchazwe impela nje:

- ayanda ukubambezeleka, ijubane kancane. Noma yimuphi ndima isignali ukuphazamiseka (software noma ngokomzimba) ukunciphisa ijubane;

- ngokuvamile ukusakaza idatha kuhlanganisa ibhithi ezengeziwe ezisebenza imisebenzi impinda - okubizwa ngokuthi "komsebenzi". Lokhu kuyadingeka ukuqinisekisa ukusebenza kahle nemibandela khona umsindo emgqeni;

- emkhawulweni ngokomzimba medium kokuqhuba lapho zonke kuvunyelwe imvamisa amabanga kakade esetshenziswa futhi izingxenye ezintsha idatha ezibekwe ulayini kokuthumelwa.

Ukuze kuxazululwe lezi zinkinga abahlinzeki zisebenzisa eziningi izingeniso ezihlukahlukene. Lokhu kungaba wekhasi, okwandisa "ububanzi" kodwa elisinika a ukulibala; ukwandisa esiteshini ngenxa "extra" kokuqhuba abezindaba nokunye.

Igama elithi "Translations into Zulu" ngezinye izikhathi lisetshenziselwa e inqubo digital. Eqinisweni, kusho inani ibhithi idatha adluliselwe per unit isikhathi. Ezikhathini kancane zokuxhumana imigqa (yokudayela) 1 bps oluhambisana 1 kancane ngayinye 1 yesibili. Esikhathini esizayo, ne izinga lokukhula, "Translations into Zulu" saphela jikelele. It kungasho 1, 2, 3 noma ngaphezulu izingcezu ngomzuzwana, ezidinga liyisibonelo ahlukene, ngakho manje zisebenzisa uhlelo ehlukene, kuyaqondakala kuwo wonke umuntu.