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Wireless: nws yog dab tsi nyob rau hauv computer technology?

Tsis ntev los no, ib tug ntau nqe lus nug ntawm cov neeg siv ntawm computer terminals, laptops los yog mobile pab kiag li lawm: "Wireless - yog dab tsi?". Cia saib no lub npe thiab muab ib co yooj yim cov ntsiab lus txhais.

Wireless: nws yog nyob rau hauv ib tug general kev txiav txim zoo?

Thawb tawm yuav pib yuav tsum yog los ntawm lub ntsiab txhais thiab txhais lus los ntawm lus Askiv. Nws yog tsim los ntawm cov lo lus hlau (cable, qaum, hlau) thiab kaw -less, uas thaum ntxiv rau tus thawj lo lus yog "tsis tuaj kawm ntawv", "free" thiab t. D.

Ua tau, li no nws yuav tsum xaus lus tias tus wireless, nyob rau hauv qhov tseeb, txhais tau tias "wireless." Niaj hnub no yog xws li ib tug tshaj plaws lawm siv tau rau kev sib txuas lus tshuab thiab siv Internet. Leej twg tsis tau hnov txog Wi-Fi? Tab sis xws li ib tug network yuav yus precisely los ntawm lub sij hawm "wireless".

Yuav ua li cas yog ib tug Wireless adapter: tswv yim thiab hom

Nrog kev xav txog adapters uas yog siv rau cov wireless kev sib txuas lus, feem ntau yog cov routers, ADSL-modems nrog kev Wi-nkaus, USB-adapter, raws li zoo raws li tus qauv Cheebtsam raws li nyob rau hauv PCI tsheb npav yog ntsia, e.g., nyob rau hauv lub ruaj ruaj computers, Wi-Fi -modules nyob rau hauv mobile gadgets, raws li zoo raws li ib tug kev twb kev txuas txhais tau tias ntawm Bluetooth (lawv kuj zwm rau lub wireless technology qeb).

Nws mus tsis tau hais tias tej ntsiab cai ntawm lawv lub lag luam yog sib txawv dog dig, zoo li installation thiab configuration txoj kev. Piv txwv li, ib tug router, nyob ntawm seb tus qauv, yuav muab lub tsev IP-chaw nyob rau ntau pab kiag li lawm, thiab lub ntau yam ntawm cov yog hom twg ntawm 10-100 m nyob rau hauv txoj kab ntawm pom. USB-adapter thiab nyob ruaj ruaj li nws raws li nyob rau hauv PCI tsheb npav kev cob cog rua ncaj qha mus rau computers los yog laptops thiab muaj peev xwm ntawm wireless kev sib txuas lus tsuas yog rau cov terminals uas yog ncaj qha kev cob cog rua. Raws li yog twb meej txog qhov kev txiav txim los yog cov nyob rau ntawm lub teeb liab tsis pub dhau lwm yam pab kiag li lawm yuav tsis txawj hais lus ntawm no. Txawm tias muaj ib txhia ua qauv koj yuav mus ua ib lub tsev los ntawm koj tus kheej lub computer los yog laptop. Tab sis cov nqe lus nug peb tsis txhob kov.

Wireless tes hauj lwm thiab ntxiv cov nyiaj

Lub tswvyim ntawm "wireless network» (Wireless Network) nyob rau kuj ntev los no. Yog hais tias peb tham txog computer technology, muaj ob lub ntsiab pawg yuav tsum tau qhia tes hauj lwm: Wi-nkaus thiab WiMAX.

Nws mus tsis tau hais tias thaum koj nruab kev sib txuas lus nyob rau hauv xws tes hauj lwm siv txawv technologies. Feem ntau, Wi-nkaus tes hauj lwm ntiav thiaj li hu ua unlicensed frequencies thiab tsuas siv rau ib lub vojvoog ntawm kev pab them nqi, uas feem ntau tsis pub dhau 100 m. Ntawm cov hoob kawm, ib tug ntau nyob rau hauv lub peev xwm ntawm tus neeg muag khoom, piv txwv li, lub hom ntawm lub router.

Muaj lwm lub tswvyim ntawm wireless. Yuav ua li cas yog nws nyob rau hauv cov nqe lus ntawm WiMAX tes hauj lwm? Qhov no, saum toj no tag nrho, siv ntawm ib tug ntawv tso cai kis tau tus mob lub teeb liab zaus thiab yuav tsum vov kaum ntawm kilometers. Txawm li cas los, ntawm cov contingent zoo tib yam cov neeg siv xws tshwj xeeb tis network tsis tau txais xwb vim hais tias ntawm nws cov high nqi (lub ntsiab lus cov khoom, installation, txij nkawm, tus neeg siv cov nqi, thiab hais txog. D.).

Xav lub ntsiab ntawm «Wireless :? ua li cas nws yog" tsis yooj yim sua rau tsis quav ntsej txog txoj kev Bluetooth wireless cov ntaub ntawv hloov lwm lub tsev. Ntawm cov hoob kawm, nyob rau hauv Feem ntau, mus saib tau rau hauv Internet xws modules yog tsis haum, tab sis rau tus ceev hloov lwm lub tsev ntawm cov ntaub ntawv thiab cov ntaub ntawv haum zoo heev. Yeej muaj tseeb, yog tsim nyog yuav tau xav txog limiting tus voos kheej-kheej ntawm kev txiav txim, uas feem ntau tsis pub dhau lub 10 meters.

xaus

Ntawm no yog ib nyuag hais tias yog ib tug wireless kev sib txuas lus tshuab. Nyob rau hauv cov ntaub ntawv no, peb tau kawm xwb lub computer ntiaj teb no, thiab tsis tau ob peb xav txog qhov tseeb hais tias cov xov tooj txawb no yeej tseem zoo tib yam siv rau dab tsi yog feem ntau hu ua wireless technologies. Txawm nyob rau hauv lub neej txhua hnub peb yuav confronted nrog lawv yuav luag txhua txhua hnub. Noj tsawg kawg yog ib tug dog dig tej thaj chaw deb tswj tsev cov khoom siv tej thaj chaw deb tswj. Nws yuav siv tau ntawm Identify thiab tau txais kev tswj teeb liab raws li nyob rau hauv lub peevxwm ntawm lub infrared chaw nres nkoj. Txawm li cas los, koj yuav mus no daim ntawv teev rau heev ib cov sij hawm.

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