Lo lus teb rau lo lus nug: "Hloov - yog dab tsi?"

Feem ntau cov neeg siv ntawm computer tes hauj lwm saib tsis muaj qhov txawv nruab nrab ntawm tus network khoom xws li keyboards, hubs, etc. Los ntawm lawv koj yuav hnov lo lus nug: "Hloov? Yuav ua li cas yog nws? "Los yog" Yuav ua li cas yog txawv los ntawm lub hub hub? ". Nyob rau hauv no tsab xov xwm peb yuav saib qhov yooj yim network khoom thiab to taub, dua li cov uas tau hais li txawv los ntawm txhua lwm yam.

Hloov. Yuav ua li cas yog nws?

Cov pab kiag li lawm yog siv rau integrate ib tug ntau yam ntawm pab kiag li lawm xws li computers, servers, network koob yees duab, thiab lwm yam, yog kev cob cog rua nrog lawv nyob rau hauv ib qho network. Hais tias yog, ib tug mus yog ib yam ntawm intermediary uas tso cai rau ib tug ntau yam ntawm pab kiag li lawm sib txuas lus nrog txhua lwm yam. Tam sim no peb muab cov txawj nyeem ntawv nyob deb deb ntawm cov kos duab tswvyim ntawm cov nqe lus, tej zaum rau ib co nws yuav tsum yog ib tug tshwm sim. Hloov thiab mus - lawv yog ib tug thiab cov tib ntaus ntawv. Lub sij hawm "hloov" tsuas yog ib tug neeg txhais lus los ntawm lus Askiv lo lus «hloov». Tib yam siv rau lub sij hawm "hub" thiab "hub» (hub).

cov kev pab cuam keyboards

Cov pab kiag li lawm yog yus muaj los ntawm muaj peev xwm, siab cov ntaub ntawv kis tau tus mob ceev, kev cia siab thiab lav lub correctness ntawm cov kis cov ntaub ntawv. Kev siv cov keyboards yog txo load thoob plaws ib tug computer network los yog nws cais seem.

Ntawm no yog peb cov nyob rau hauv ib tug nutshell, yuav luag tsis muaj kev siv ntawm nyuab kev cov ntsiab lus uas, suav xws li ib tug tshaj plaws raws li ib tug hloov, nws yog dab tsi thiab nws yog dab tsi rau. Tam sim no tsom xam dab tsi yog qhov txawv ntawm keyboards thiab hubs. Wb tau pib.

Cov kev khiav hauj lwm hauv paus ntsiab lus ntawm lub hub

Cov pab kiag li lawm txuas tag nrho cov cables ntawm computer network, lawv tso cai rau ib tug tej lub sij hawm cov zaj ntawm cov ntaub ntawv los ntawm ib tug node mus rau lwm lub. Ntxiv mus, lub hub muaj cov ntaub ntawv no nyob rau hauv lem mus rau txhua node, raws li ntev raws li lawv tsis tau txais cov kev kawm lo lus uas peb. Yog hais tias koj xav kom xa (los yog tau txais) ntaub ntawv mus rau ntau yam pab kiag li lawm, lub hub yog tsis muaj peev xwm ua rau nws nyob rau tib lub sij hawm. Nws nhro ntawm random neeg siv thiab hau, ces tom ntej no thiab thiaj li nyob. No tag nrho cov txheej txheem yog nqa tawm nyob rau hauv tib lub npav, nyob rau lub bandwidth yog tag nrho 100 Mbit / sec.

Cov kev khiav hauj lwm hauv paus ntsiab lus ntawm tus tes hloov qhov

Peb tam sim no xav txog ib tug mus: nws yog dab tsi, peb twb paub, peb tsuas muaj kom paub tseeb yuav ua li cas nws ua hauj lwm. Qhov no ntaus ntawv yog ib tug ntau "ntse" tshaj lub hub. Tom qab xa cov nyob rau hauv computer network hloov paub network chaw nyob ntawm txhua tus ntawm. Rau lub hom phiaj no muaj yog ib tug nco unit. Raws li ib tug tshwm sim ntawm tus tes hloov qhov txiav txim seb tus ntaus ntawv koj xav mus rau cov hloov cov ntaub ntawv, thiab xa lawv tam sim ntawd mus rau lub ADDRESSEE, uas zoo heev speeds cov ua hauj lwm ntawm lub network. Qhov kom zoo dua ntawm no ntaus ntawv yog nws simplicity, txij thaum nyob rau kev txiav txim ua kom lub network tsis tau hloov mus. Cia li txuas connectors - tag nrho, lub network yog npaj txhij rau kev siv. Lub peev xwm ntawm cov log tsheb yog 1 Gbit / sec, uas tshaj lub hub 10 lub sij hawm. Vim li ib tug siab cov ntaub ntawv tus nqi, cov los ntawm Internet los ntawm tus tes hloov qhov yuav ho ntau tshaj qhov tib tsheb, tab sis cev tawm, piv txwv li, los ntawm Wi-nkaus.