Video: Lub modem ntsaws rau hauv dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
A modem yog lub thawv me me lossis cov cuab yeej uas nyob nruab nrab ntawm koj lub khoos phis tawj thiab koj lub phab ntsa lossis lub thawv cable, nyob ntawm seb hom kev sib txuas hauv internet uas koj muaj. Yog tias koj siv dial-up lossis DSL ces koj modem yuav txuas rau phab ntsa thiab yog tias koj siv cable ces nws yuav txuas rau koj lub thawv cable lossis muaj coaxial cable.
Ib yam li ntawd, ib tug yuav nug, tus modem ua li cas?
Modem yog luv rau Modulator Demodulator. Nws yog cov cuab yeej siv hluav taws xob siv los nkag rau hauv Is Taws Nem uas hloov pauv cov kab ke nthwv dej rau encode cov ntaub ntawv kom kis tau thiab tseem demodulates cov khoom thauj khoom xa tuaj los txiav txim siab cov ntaub ntawv uas lawv nqa.
Tsis tas li ntawd, qhov txawv ntawm WIFI router thiab modem yog dab tsi? Cov qhov sib txawv ntawm a modem thiab a router yog a modem txuas rau hauv internet, thaum a router txuas cov khoom siv rau Wi-nkaus . Nws yog ib qho yooj yim kom tau txais ob lub cuab yeej sib xyaw yog tias koj tus neeg muab kev pabcuam hauv internet (ISP) xauj ob qho tib si rau koj raws li ib feem ntawm lub pob hauv internet.
Hauv qhov no, koj puas xav tau lub router yog tias koj muaj modem?
Cov router zaum hauv nruab nrab ntawm koj qhov kev sib txuas hauv Is Taws Nem thiab koj lub network hauv zos. Tab sis koj ua tau 'tsis txuas ncaj qha mus rau Is Taws Nem nrog tsuas yog ib qho router . Es tsis txhob, koj router yuav tsum tau ntsaws rau hauv ib lub cuab yeej uas ua tau xa koj cov tsheb digital hla txhua hom kev sib txuas hauv Is Taws Nem koj muaj . Thiab cov cuab yeej ntawd yog a modem.
Modem yog dab tsi thiab nws ua haujlwm li cas?
Lo lus " modem "yog ib qho kev cog lus ntawm cov lus modulator-demodulator. A modem feem ntau yog siv los xa cov ntaub ntawv digital hauv xov tooj. Kev xa modem modulates cov ntaub ntawv mus rau hauv lub teeb liab uas yog sib xws nrog lub xov tooj kab, thiab qhov tau txais modem demodulates lub teeb liab rov qab rau hauv digitaldata.
Pom zoo:
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