Lub luag haujlwm ntawm modem yog dab tsi hauv kev sib txuas lus cov ntaub ntawv?
Lub luag haujlwm ntawm modem yog dab tsi hauv kev sib txuas lus cov ntaub ntawv?

Video: Lub luag haujlwm ntawm modem yog dab tsi hauv kev sib txuas lus cov ntaub ntawv?

Video: Lub luag haujlwm ntawm modem yog dab tsi hauv kev sib txuas lus cov ntaub ntawv?
Video: Qhia Saib tus Number Tsev/ Lej tsev tias zoo los phem ( yuav daws li cas yog tsis zoo) 2024, Kaum ib hlis
Anonim

A modem yog ib tug ntaus ntawv los yog ib qho kev pab cuam uas enables acomputer kis tau tus mob cov ntaub ntawv tshaj, piv txwv li, xov tooj orcable kab. Cov ntaub ntawv khoos phis tawj tau muab khaws cia hauv digitally, thaum cov ntaub ntawv xa tawm hauv xov tooj yog xa mus rau hauv daim ntawv ntawm analog nthwv dej. A modem converts ntawm ob daim ntawv no.

Tsuas yog li ntawd, Modem yog dab tsi yog nws txoj haujlwm?

Modem sawv cev rau Modulator/DEModulator. A modem converts digital signals generated by the computer into analog signals which can be transmitted over a xov tooj orcable line and transforms incoming analog signals into theirdigital equivalents.

Tom qab ntawd, lo lus nug yog, dab tsi ua haujlwm ntawm modem hauv WAN? Cov modem siv cov teeb liab los ntawm koj ISP thiab txhais lawv mus rau hauv cov teeb liab koj cov khoom siv hauv zos ua tau siv, thiab vice versa. Kev sib txuas ntawm koj lub tsev thiab Is Taws Nem paub tias yog thaj chaw dav dav ( WAN ). Txhua modem muaj kev tso cai rau pej xeem IP chaw nyob uas txheeb xyuas nws hauv Is Taws Nem.

Dhau li ntawm no, dab tsi yog modem thiab nws cov haujlwm thiab nws hom?

Modem yog luv luv rau Modulator – Demodulator. Modems yog siv los hloov cov ntaub ntawv los ntawm ib lub computer network mus rau lwm lub computer network los ntawm cov xov tooj. Cov khoos phis tawj network ua haujlwm hauv hom digital, thaum siv tshuab thev naus laus zis yog siv los nqa cov zaws thoob hauv xov tooj.

Dab tsi yog qhov txawv ntawm modem?

Hom . Cov hom ntawm muaj modems suav nrog analog, digital subscriber kab (DSL), cable thiab Integrated Services Digital Network (ISDN). Analog modems yog siv rau dial-up kev sib txuas. DSL thiab cable yog high-speed broadband sib txuas.

Pom zoo: