Computer networking, tsis txhob totaub nrog kev sib tham, yog kev xyaum ntawm kev cuam tshuam ob lossis ntau lub khoos phis tawj rau lub hom phiaj ntawm kev sib qhia cov ntaub ntawv. Cov khoos phis tawj sib txuas tau tsim nrog kev sib xyaw ntawm cov khoom siv thiab software.
kab hauv qab
Computer networks tuaj yeem faib ua ntau txoj hauv kev. Ib txoj hauv kev txhais cov hom network raws li thaj chaw thaj chaw nws hla. Piv txwv li, cov chaw hauv cheeb tsam hauv cheeb tsam (LANs), feem ntau nthuav dav ib lub tsev, tsev kawm ntawv, lossis lub tsev ua haujlwm me me, qhov chaw dav dav (WANs), mus txog thoob plaws nroog, xeev, lossis thoob plaws ntiaj teb. Is Taws Nem yog lub ntiaj teb coob tshaj plaws pej xeem WAN.
Network Design
Computer networks kuj txawv ntawm lawv txoj kev tsim. Ob hom qauv tsim hauv network yog hu ua tus neeg siv khoom-neeg rau zaub mov thiab cov phooj ywg-rau-peer.
Cov neeg siv-neeg rau zaub mov network muaj cov khoos phis tawj hauv nruab nrab uas khaws email, nplooj ntawv web, cov ntaub ntawv, thiab cov ntawv thov nkag los ntawm cov neeg siv computer thiab lwm yam khoom siv. Ntawm cov phooj ywg-rau-peer network, hloov pauv, txhua yam khoom siv yuav txhawb nqa tib lub zog. Client-server networks muaj nyob rau hauv kev lag luam, thiab cov phooj ywg-rau-peer networks muaj nyob rau hauv tsev.
A network topology txhais lub network layout lossis qauv los ntawm qhov pom ntawm cov ntaub ntawv ntws. Piv txwv li, hauv cov tsheb npav network, txhua lub khoos phis tawj sib koom thiab sib txuas lus thoob plaws ib qho kev sib txuas, thaum nyob hauv lub hnub qub network, cov ntaub ntawv ntws los ntawm ib qho khoom siv hauv nruab nrab. Cov hom kev sib txuas hauv network xws li tsheb npav, hnub qub, nplhaib, thiab mesh.
kab hauv qab
Cov lus sib txuas lus siv los ntawm cov cuab yeej siv computer hu ua network raws tu qauv. Lwm txoj hauv kev los faib cov khoos phis tawj hauv computer yog los ntawm cov txheej txheem uas lawv txhawb nqa. Networks feem ntau siv ntau yam kev cai thiab txhua lub network txhawb cov ntawv thov tshwj xeeb. Cov kev cai nrov muaj xws li TCP/IP-ib qho uas feem ntau pom hauv is taws nem thiab hauv tsev network.
Computer Network Hardware thiab Software
Lub hom phiaj tshwj xeeb ntawm cov khoom siv sib txuas lus (xws li network routers, nkag mus rau cov ntsiab lus, thiab cov kab txuas hauv network) lub cev sib txuas lub network ua ke. Network kev khiav hauj lwm systems thiab lwm yam software daim ntawv thov tsim network tsheb thiab pab kom cov neeg siv ua tej yam muaj txiaj ntsig.
Router yog dab tsi thiab nws ua haujlwm li cas?
Home Computer Networking
Txawm hais tias lwm hom kev sib txuas tau tsim thiab tswj hwm los ntawm cov kws tsim khoom, cov kev sib txuas hauv tsev yog rau cov tswv tsev uas tej zaum yuav muaj tsawg lossis tsis muaj keeb kwm yav dhau los.
Ntau lub tuam txhab tsim cov khoom siv dav dav router tsim los ua kom yooj yim rau kev teeb tsa hauv tsev. Ib lub router hauv tsev ua rau cov khoom siv hauv cov chav sib txawv kom muaj txiaj ntsig zoo sib koom kev sib txuas hauv Is Taws Nem, pab cov tswv cuab hauv tsev sib koom cov ntaub ntawv thiab tshuab luam ntawv hauv lub network, thiab txhim kho kev ruaj ntseg hauv network tag nrho.
Cov tes hauj lwm hauv tsev tau nce hauv kev muaj peev xwm nrog txhua tiam tshiab ntawm cov cuab yeej siv. Ntau xyoo dhau los, tib neeg feem ntau teeb tsa lub network hauv tsev los txuas ob peb lub PCs, sib qhia cov ntaub ntawv, thiab tej zaum muab lub tshuab luam ntawv. Tam sim no nws yog ib txwm muaj rau tsev neeg rau network game consoles, digital video recorders, thiab smartphones rau streaming suab thiab video.
Lub tshuab hluav taws xob hauv tsev kuj tseem muaj nyob rau ntau xyoo, tab sis cov no tau loj hlob nyob rau hauv qhov chaw tsis ntev los no nrog cov txheej txheem ua haujlwm uas tswj lub teeb, ntsuas kub digital, thiab cov khoom siv.
Business Computer Networks
chaw ua haujlwm me thiab chaw ua haujlwm hauv tsev (SOHO) ib puag ncig siv thev naus laus zis uas zoo ib yam li hauv tsev network. Cov lag luam feem ntau muaj kev sib txuas lus ntxiv, khaws cov ntaub ntawv, thiab kev ruaj ntseg uas yuav tsum tau nthuav dav hauv kev sib txawv, tshwj xeeb tshaj yog vim kev lag luam loj dua.
Thaum lub network hauv tsev feem ntau ua haujlwm raws li ib qho LAN, lub lag luam network nyiam muaj ntau LANs. Cov tuam txhab uas muag nrog ntau lub tsev nyob hauv ntau qhov chaw siv kev sib tham dav dav los txuas cov ceg haujlwm no ua ke.
Txawm hais tias tseem muaj thiab siv los ntawm qee tsev neeg, lub suab ntawm IP kev sib txuas lus, kev cia hauv network, thiab cov thev naus laus zis thev naus laus zis tau nthuav dav hauv kev lag luam. Cov tuam txhab loj kuj tseem tuav cov vev xaib sab hauv, hu ua intranets, los pab nrog cov neeg ua haujlwm sib txuas lus.
kab hauv qab
Qhov nrov ntawm cov khoos phis tawj sib txuas tau nce siab nrog kev tsim lub Ntiaj Teb Wide Web (WWW) hauv xyoo 1990. Cov vev xaib pej xeem, cov neeg sib koom ua ke (P2P) cov ntaub ntawv sib koom, thiab lwm yam kev pabcuam khiav hauv internet servers thoob plaws ntiaj teb.
Wired vs. Wireless Computer Networking
Ntau yam ntawm tib txoj cai xws li TCP / IP ua haujlwm hauv ob lub xov tooj thiab wireless. Kev sib txuas nrog Ethernet cables tau tshwm sim hauv kev lag luam, tsev kawm ntawv, thiab tsev rau ntau xyoo lawm. Wi-Fi tau tshwm sim los ua qhov kev xaiv zoo tshaj plaws rau kev tsim kho cov khoos phis tawj tshiab, ib feem los txhawb cov xov tooj smartphones thiab lwm yam khoom siv wireless uas tau ua rau muaj kev sib txuas ntawm txawb.
FAQ
Dab tsi yog firewall nyob rau hauv lub computer network?
A firewall yog hom kev ruaj ntseg kom tsis txhob xav tau cov neeg siv nkag mus rau koj lub network. Firewalls tuaj yeem yog cov cuab yeej kho vajtse lossis cov ntawv thov software uas ua tus saib xyuas lub rooj vag rau txhua qhov kev nkag thiab tawm mus.
Dab tsi yog lub network zais siv rau?
Thaum lub wireless network zais, nws txhais tau tias lub network tsis tshaj tawm nws tus ID network. Txhawm rau tsim lub network zais, koj yuav tsum zais lub modem thiab router.
