Video: Kev sib txuas lus 3g thiab 4g yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
3g thiab 4g yog ob lub network uas txuas koj lub xov tooj rau hauv internet. Qhov "G" nyob rau hauv txhua qhov sawv cev rau kev tsim. Yog li qhov twg 3 G txhais tau tias 'thib peb tiam', 4 G stands rau 'fourth tiam'. Raws li nws yog nrog cov khoom siv thev naus laus zis feem ntau, tus lej loj dua qhia qhov tshiab dua, zoo dua ntawm cov thev naus laus zis sib txawv. 4 G sai dua.
Tsuas yog li ntawd, 3g txawv ntawm 4g li cas?
Lub ntsiab txawv nruab nrab 3 G thiab 4 G yog speed- 4 G nqa broadband rau koj lub xov tooj. Yog tias koj xav tau yav tom ntej-pov thawj koj cov kev sib txuas lus txawb thiab kev lom zem, koj xav tau 4 G , nrog speeds txog li kaum zaus dua 3 G . 'G' hauv 3 G thiab 4 G stands rau 'generation'.
Ib yam li ntawd, cov khoom siv 3g puas ua haujlwm ntawm 4g? Hmoov tsis, muaj peev xwm nkag tau rau hauv 4 G network nyob ntawm koj lub xov tooj muaj peev xwm. Yog li ntawd, yog tias koj muaj ib tug 3 G xov tooj, koj yuav tsis muaj kev nkag tau mus rau lub 4 G network. Hauv CDMA network, a 3 G xov tooj ua tau nkag mus rau 3 G network, ib 4 G xov tooj ua tau nkag mus rau qhov tsis tu ncua 4 G network thiab LTE xov tooj ua tau nkag mus rau 4 G LTE network.
Ntawm no, 3g cov ntaub ntawv ceev yog dab tsi?
Nrog yam tsawg kawg nkaus hauv Internet ceev ntawm 144 Kbps, 3 G yuav tsum coj "mobile broadband." Tam sim no muaj ntau ntau yam ntawm 3 G Txawm li cas los xij, qhov ntawd yog " 3 G "Kev sib txuas tuaj yeem ua rau koj hauv Internet ceev nyob qhov twg los ntawm 400Kbpsto ntau tshaj kaum npaug ntawd.
Vim li cas 3g sai dua 4g?
3 G tes hauj lwm ua tiav qhov ceev ntawm tsawg kawg yog 144 kB / s, thaum 4 G networks muaj txog li 10 zaug sai dua ceev. Qhov no txhais tau hais tias thaum peb ua qhov rub tawm ntawm peb lub cuab yeej los ntawm Is Taws Nem, cov txheej txheem yuav siv sijhawm luv dua.
Pom zoo:
Dab tsi yog tag nrho cov kab kev sib txuas lus uas xav tau rau kev sib txuas tag nrho rau taw tes network ntawm tsib lub khoos phis tawj rau lub khoos phis tawj?
Tus naj npawb ntawm cov kab sib txuas lus uas yuav tsum tau muaj rau kev sib txuas tag nrho ntawm qhov taw tes rau-taw tes ntawm yim lub khoos phis tawj yog nees nkaum yim. Ib tug tag nrho txuas cuaj lub computer network yuav tsum tau peb caug rau kab. Ib tug tag nrho txuas kaum lub computer network yuav tsum tau plaub caug tsib kab
Dab tsi yog qhov sib txawv ntawm kev sib txuas lus taw qhia thiab kev sib txuas tsis raug cai?
Qhov txawv: Kev sib txuas lus taw qhia thiab kev sib txuas tsis muaj kev sib txuas Kev sib txuas lus taw qhia kev sib txuas ua rau muaj kev sib txuas thiab xyuas seb cov lus puas tau txais lossis tsis tau thiab xa rov qab yog tias muaj qhov yuam kev tshwm sim, thaum qhov kev pabcuam tsis sib txuas tsis tau lees tias xa xov
Dab tsi yog qee qhov teeb meem kev coj ncaj ncees thiab teeb meem cuam tshuam nrog khoos phis tawj thiab kev sib txuas lus hluav taws xob?
Qee qhov teeb meem no yog qhov tshiab (xws li luam theej duab software), thaum lwm tus yog cov tshiab version ntawm cov teeb meem qub txog qhov raug thiab tsis ncaj ncees, kev ncaj ncees, kev ncaj ncees, lub luag haujlwm, tsis pub lwm tus paub, kev ntseeg siab, kev lav phib xaub, thiab kev ncaj ncees. Cov neeg siv ntsib qee qhov teeb meem no thaum cov kws tshaj lij hauv computer ntsib tag nrho lawv
Dab tsi yog qhov txawv ntawm kev sib raug zoo unary kev sib raug zoo binary thiab kev sib raug zoo ternary?
Kev sib raug zoo tsis sib xws yog thaum ob tus neeg koom hauv kev sib raug zoo yog tib lub koom haum. Piv txwv li: Cov ncauj lus yuav yog qhov yuav tsum tau ua ua ntej rau lwm yam kev kawm. Kev sib raug zoo ternary yog thaum peb lub koom haum koom nrog kev sib raug zoo
Dab tsi yog qhov sib txawv tseem ceeb ntawm kev sib txuas lus tsis sib xws thiab kev sib txuas lus taw qhia?
1. Hauv kev sib txuas lus tsis muaj kev sib txuas lus tsis tas yuav tsim kev sib txuas ntawm qhov chaw (sender) thiab qhov chaw (receiver). Tab sis nyob rau hauv kev sib txuas-taw qhia kev sib txuas lus kev sib txuas lus yuav tsum tau tsim ua ntej hloov cov ntaub ntawv