Video: Lub luag haujlwm ntawm modem yog dab tsi hauv kev sib txuas lus cov ntaub ntawv?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
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:
Lub luag haujlwm ntawm kev sib txuas lus tsis yog lus yog dab tsi?
Lub luag haujlwm tseem ceeb ntawm kev sib txuas lus tsis yog lus yog qhia lub ntsiab lus los ntawm kev txhawb nqa, hloov pauv, lossis tsis sib haum xeeb ntawm kev hais lus. Kev sib txuas lus tsis yog lus kuj yog siv los cuam tshuam lwm tus thiab tswj kev sib tham
Dab tsi yog qhov sib txawv ntawm cov ntaub ntawv sib sau ua ke thiab cov ntaub ntawv tsis sib xws?
Kev sib sau cov ntaub ntawv yog sau thiab sau cov ntaub ntawv; kom disaggregate cov ntaub ntawv yog rhuav tshem cov ntaub ntawv sib sau ua ke rau hauv cov khoom siv lossis cov ntaub ntawv me me
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 ntawm cov hauv qab no yog hais txog cov txheej txheem ntawm tus kheej muaj cov kev pabcuam uas sib txuas lus los tsim ib daim ntawv thov software ua haujlwm?
Ib qho kev pabcuam-oriented architecture yog teeb tsa cov kev pabcuam tus kheej uas sib txuas lus nrog ib leeg los tsim ib daim ntawv thov software ua haujlwm. Nyob rau hauv ib tug ntau-tiered network: kev ua hauj lwm ntawm tag nrho cov network yog sib npaug ntawm ntau theem ntawm servers
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