LeeNdawo - ntoni na? device hub

Abantu abaninzi bayazibuza ngezinto neenafu noko ziphele. Ngubani siya kuphanda lo mba. Phantsi hub eyaziwayo njengendlela enkulu womnatha. Eli gama linentsingiselo ahlukeneyo amashishini ezahlukeneyo.

Ukusebenzisa iliziko kumacandelo ahlukeneyo

Ngokomzekelo, xa kweendawo zezithuthi - esinye okanye ukucima kombane iindawo, ngokunjalo neenafu. Ishishini amandla liziko elikhethekileyo apho indlela umntu yahlulwe eziliqela. NgaPhandle kwendlela nezithuthi gama kuthiwa indlela enye-clutch efakwe kwi-asi engaphambili. Xa networks ezahlukeneyo Internet Ungasebenzisa izikhungo. Yintoni na ukuba "FidoNet" network? Apha hub - node, esetyenziselwa ukudlulisa iposi. I-Direct Connect womnatha yokwabelana ngeefayile ukuze ngokuba umncedisi we web.

Kodwa ingqiqo lusetyenziswa kakhulu ubuchwepheshe be-computer kunye Internet. Iseti ezithile izixhobo network isekelwe phezu imisebenzi apho zibekwa phambi kokuba womnatha acwangcisiweyo kunye neendleko ukuphunyezwa kwezisombululo ezithile. Enye into ebalulekileyo iingxaki ezinjalo kuthathwa ukuba ukukhetha izixhobo, phakathi apho indima ephambili idlalwa imizila, iiswitshi neenafu. Oko kukuthi, sizama ukuqonda.

LeeNdawo ku networks computer

Ukwakha ubuchwepheshe lothungelwano computer ukuba eguqukayo. Izixhobo ukuba nesiseko sayo kwaye kusetyenziswa kunxibelelwano phakathi iikhompyutha, ingabizwa ngokwahlukileyo: njengentsika, utshintsho kunye umzila. Ntoni na, siqwalasela ngokweenkcukacha.

Nganye kwezi zixhobo ukudlala indima yalo unxibelelwano phakathi kwee computer olwahlulwayo kumsebenzi womnatha. Xa ubajongile ukuze akhangele enye: iibhokisi ezibengezelayo ubungakanani obuncinane, ukuba inani kumazibuko nezidibanisi, leyo ukudibanisa Ethernet-USB. Ngokumalunga iingqiqo ezifana uneswitshi, hub, hub, umzila, badla zisetyenziswa ntonye, kodwa oku impazamo. Zonke ezi zixhobo ezahlukeneyo.

hub

Enye yamacebo womnatha zokuqala izikhungo. Ziziphi ezi zixhobo? Eli gama imvelaphi IsiNgesi. Le hub lizwi ke lelo ziko msebenzi. Hub, okanye hub, ezenzelwe ukudibanisa iikhompyutha womnatha enye ad hoc. Le fowuni ikunika inani zamazibuko, nto leyo uqhagamshela naziphi na iikhompyutha yobuqu kwi-network. Kaninzi zisetyenziselwa le njongo, sibini, ephothiweyo, nto leyo acudisiweyo ngendlela ekhethekileyo.

Umgaqo esebenza ngayo hub

Cinga siseko ukusebenza hub network. Xa uzama ukufikelela nayiphi na iikhompyutha womnatha mayixhotyiswe hub, ukuya kwenye ikhompyutha, isixhobo yokuqala ithunyelwe kule dilesi ye-network hub iqhekeza ethile inkcazelo ekuthiwa iipakethi.

Zama ukuqonda umzekelo yesekethe ngeekhompyutha ezintathu. Masithi isixhobo ziqhotyoshelwe iikhompyutha PC1, PC2 kunye PC3. Indima hub ilele nokukotshwa packet data evela PC1 ngokuthi wayithumela kwezinye izixhobo, idityaniswe ibe WLAN, oko kukuthi, PC2 kunye PC3. Ngexesha ukwamkelwa PC3 uphawu computer, awusebenzeleyo eyenzelwe, le yokugqibela ethumela hub ukubuya ipakethe. Le hub iphakheji kwakhona ithumela zonke iikhompyutha womnatha logama nje impendulo evela PC3 akayi kubuyela uthumelo computer PC1.

Loo mfanekiso engumzekelo lojongano lweekhompyutha lidibane kuthungelwano lwendawo hub. Eyona ethile ezingundoqo lothungelwano ezinjalo - inkcazelo eninzi luthunyelwe. Le hub womnatha gqolo uthumela iipakethi data kuzo zonke izixhobo womnatha, nkqu kwimeko apho indawo iya kuba PC ethile. Kwangaxeshanye, computer inkcazelo ukuba basoloko ngokupheleleyo awudingi kuzo. Ithekhnoloji uzibonakalisa exabiso likhulu kakhulu phandle. Yiloo nto ngoku neenafu phantse ngaphandle ukusetyenziswa. In ukubuya, baba izixhobo ekrelekrele - itshintshela womnatha, nto parlance eqhelekileyo ubizwa ngokuba iswitshi.

shintsha

Igama elithi "tshintshela" (iswitshi) ine uhlobo IsiNgesi kwaye switsha kuthetha, okanye utshintsho womnatha. Kanye iswitshi hub kufuneka ukudibanisa iikhompyutha kumsebenzi womnatha efanayo wendawo. Udibaniso Umzobo we computer yahlukile beesekethe kunye hub womnatha. Endaweni ye PC hub eqhagamshelwe iswitshi.

Njengoko kubonakala efana kakhulu ukuya hub, utshintsho eyahlukileyo ngokwesiseko kuyo, yeyona ndlela ingcaciso ethunyelwayo phakathi kwee computer womnatha.

Emva kokufumana le ipakethe ingcaciso evela kwi khompyutha, switsha womnatha, ngokungafaniyo hub akuthethi phambili ukuba zonke iiPC inxaxheba kumsebenzi womnatha, aze alungise iphakheji deployment kwidilesi oko ikhompyutha, nto leyo eyenzelwe phasela. Ngokomzekelo, xa PK1 uthumela lwenkcukacha zepakethe kwi PK3, switsha ulungiselela ukudluliselwa kuye, ngokudlula PK2. PK3 impendulo ipakethe evela iswitshi womnatha kwakhona ibuyisela kuphela ulwazi umthumeli kulo zepakethe - PK1.

Iswitshi uyakwazi ukugcina idilesi zonke iikhompyutha ezinento kumazibuko ayo, yaye ngaloo ndlela kungenziwa eziqhutshwa ligosa eligunyazisiweyo, ukudlulisela inkcazelo kuphela kwi-PC indawo ngoyaba abanye.

Isiseko ye iswitshi womnatha wabeka phantsi itafile ezizodwa Mac-idilesi abasebenzisi izixhobo uthungelwano kuthungelwano lwangaphandle nangaphakathi. Ngenxa yoko, ipakethi lolwazi, bangene ngamnye amazibuko xhaxhe sothelekiso itafile yomgudu kwaye zithunyelwe kule dilesi izibuko, apho izixhobo ezifanelekileyo.

umzila

Igama "umzila" sibangele ukuba kumzila IsiNgesi. Le zendlela uyakwazi ukucwangcisa ukutshintshwa ngolwazi phakathi LANs ezimbini okanye ngaphezulu ezahlukeneyo. Ukongeza, le zendlela sinika amazibuko ezifunekayo ukudibanisa ku ezinye isixhobo kunye intambo.

Umgaqo nokusebenza umzila

Kanye iswitshi womnatha igcina netafile Mac-idilesi, le zendlela njengoko itafile yomgudu igcina itafile IP-adresi. Umsebenzi ophambili we zendlela kukuba ukugcina idata kunye nolawulo ukuze abanye imizila bayazi utshintsho ophinyeneyo uqwalaselo. Oku isonjululwe ukusetyenziswa lwemithetho yokuziphatha yomgudu ukuba nolungelelaniso kunye namanye imizila. Xa kufumana umqulu kwi zendlela lokugqibela isebenzisa iprotocol ezahlukeneyo kunye neenqobo yokuqingqa ulwazi indlela ipakethe phambili endaweni engcono.

Le zendlela inokwenziwa ukuquka imithetho-level programme zigqitywa okuqulethwe iipakethi ulwazi ulwaziwey kuye. Le zendlela kwamiselwa ukuba isebenze le nkqubo yokhuseleko izixhobo womnatha, womnatha yasasazwa NATED-idilesi abe iinkonzo zenethiwekhi DHCP.

Nge Akunakuba yengqondo, imizila ziphakathi izixhobo womnatha ephambili. Ukongeza amathuba ukuthumela imbalelwano iinkcukacha zendlela imizila ipakethe zingasetyenziswa ukuvelisa uthungelwano ulawulo lwezithuthi. Ukongeza, kuba bayakwazi ukuba uyiphendule utshintsho kwinethiwekhi kwindlela olutshintshayo uzingela ukuba aveze ucoco yayo ukhuseleko ipakethe, ukubala iipakethi ukuvala okanye badlule.

USB-hub

Ukongeza kweendawo womnatha Ethernet, igama elithi "hub" lisetyenziswa ubuchwepheshe USB. Uphuhliso kwezixhobo ndawo neemfuno ezintsha phezulu kwinqanaba ubhekiso phambili lwenjongano umsebenzisi kwezixhobo zekhompyutha. Kukho iindidi ngeendidi peripherals kwekhompyutha izakubanodibaniso ngokusebenzisa uqhagamshelwano USB, oko kufuna isixhobo ekhethekileyo ukuba ukwazi ukuqhagamshela izixhobo ezininzi ngaxeshanye nge USB. Ibizwa ngokuba yi-USB-hub. Zisebenza njani?

USB-hub (USB-hub) sisixhobo nobukhulu encinane yokuba kumazibuko amaninzi. Elidityaniswe kuyo kwikhompyutha ngalo slot. It ikuvumela ukuba ukwazi ukuqhagamshela eyodwa USB-lezibuko PC ezinye izixhobo USB.

I-USB-hub

Design kunye neenafu azikho entsonkothileyo kakhulu. Ezi nkundla ke zenzelwe ukuba ukuswitsha iziganeko kunye ombane output. Ukongeza, kuqashwe ubume peripherals elidityaniswe kuyo, ukubeka umkhosi laziswe utshintsho.

Ubume hub kuquka iimodyuli ezimbini - esisebenza kunye okuphindwa kweklasi. Abaphindayo - utshintsho controllable lebhokisi igalelo kunye output namachweba. Kuye ubuchule kwakhona arhoxise usasazeko uphawu. Le isilawuli iquka iirejista avumela intsebenziswano kunye host. Iirejista zilawulwa imiyalelo ezizodwa ukuvumela ukuba avelise imeko yolawulo hub setting kwaye utshintshe i parameters zamazibuko downlink. Kuyenzeka ukuba ukusebenzisa Outsourcing hub apho izixhobo sinxulumene series.

Iintlobo USB-concentrators

Enye yezi ntlobo - ikhadi yangaphakathi kwisixokelelwano ebhasini. Usebenzela ukudibanisa USB-izixhobo ukuya motherboard. Oku kwenziwa nge kwikhadi PCI USB efakwe kwi isithuba PCI ibhasi, ebekwe ngqo kwi motherboard. Olu hlobo USB-hub kuhle ukusebenzisa abo baqhelene isixhobo computer. Abo akukho amava, kungcono ukuba ahlale kwenye ifomu.

Olunye uhlobo - nto yangaphandle USB-hub ngaphandle ngamandla. Loo isixhobo ilula kwaye ayibizi kakhulu. Le ezahlukeneyo USB-hub liqhagamshelene USB-port kwikhompyutha yakho. Esi sixhobo ngogqibeleleyo ukuze abanini laptop. abasebenzisi Ekhaya bangasebenzisa le USB-hub, kodwa kuyimfuneko ukuba luthathele ingqalelo ukuba inani izixhobo edityaniswe kwi computer kufuna amandla ekhutshwe nge USB-port. Olu hlobo hub akanako ukunika amandla izixhobo ezininzi ezinjalo. Kule meko, kuya kuba kuhle ukuba ukusebenzisa izikhungo ngamandla. Ziziphi ezi zixhobo kwaye zahluke njani izixhobo ngaphandle ngamandla?

LinguPete yokusebenza USB-hub mgaqo ncam nolo hub ngaphandle ngamandla. Umahluko amanga neqiniso ukuba ibuye ibe iplagi amandla. Oku kwenza kube lula ukuba ukunika amandla ngokupheleleyo kuzo zonke izixhobo ezinento nge YUSB. I enkulu neenafu USB - semiportovye.

Olunye uhlobo kwisixhobo enjalo - Ibhodi USB computer. Esi sixhobo ezilungele kubasebenzisi yokubhalela. Elidityaniswe kuyo okhethekileyo USB-izibuko kwi kwisisu semoto nencwadi, kwaye ikuvumela ukuba usebenzise kumazibuko ezimbini endaweni enye.