Itemu elithi i-inthanethi lihlala lixhunywe kumagama umzila kanye nemodemu (imoduli/idemodulator). Kodwa iningi labantu ngokuvamile liyadideka, ingabe kokubili umzila nemodemu kuyafana? Ingabe benza umsebenzi ofanayo? Uma kungenjalo, zihluke kanjani komunye nomunye?
Ngakho-ke, ukuxazulula le nkinga yabantu, kulesi sihloko, uzofunda ngemodemu, irutha, ukusebenza kwabo, kanye nomehluko omkhulu phakathi kwalokhu okubili.
Okuqukethwe[ fihla ]
- Uyini Umehluko Phakathi Kwerutha neModemu?
- Imodemu
- Isebenza kanjani iModemu?
- Ubuhle nobubi beModemu
- Irutha
- Isebenza kanjani i-Router?
- Izinzuzo nezingozi ze-Router
- Umehluko phakathi kweModemu nerutha
- 1. Umsebenzi
- 2. Izixhumanisi
- 3. Ezokuphepha
- 4. Ezizimele
- 5. Uhlobo lwedivayisi nesendlalelo
- Uyidinga nini imodemu noma irutha?
Uyini Umehluko Phakathi Kwerutha neModemu?
Yebo, kunomehluko phakathi kwemodemu nerutha futhi ilula kakhulu. Imodemu yileyo exhuma ku-inthanethi futhi umzila yilowo oxhuma idivayisi yakho ku-Wi-Fi ukuze ukwazi ukufinyelela i-inthanethi kalula. Ngamafuphi, irutha idala inethiwekhi phakathi kwamakhompyutha nezinye izisetshenziswa ezitholakala ekhaya lakho kuyilapho imodemu ixhuma leyo nethiwekhi futhi kanjalo, amakhompyutha akho namanye amadivaysi ku-inthanethi. Zombili ziyizingxenye ezidingekayo zokufinyelela ku-inthanethi okungenantambo nentambo endlini yakho noma kunoma iyiphi enye indawo. Manje, ake sifunde okwengeziwe ngemodemu.
Imodemu
Itemu elithi imodemu limele i-modulator/i-demodulator . Imodemu iyidivayisi yehadiwe noma uhlelo oluguqula idatha phakathi kwemidiya yokudlulisela ukuze idluliselwe kusuka kudivayisi eyodwa kuya kunoma iyiphi enye idivayisi. Ivumela ikhompuyutha ukuthumela idatha ngezintambo zocingo, izintambo zezintambo njll. isebenzisa amasignali e-analog. Idatha igcinwa kumadivayisi afana namakhompyutha ngedijithali, kodwa uma idluliswa, idluliswa ngendlela yamaza e-analog noma amasignali.
Imodemu iguqula idatha yedijithali ekhona kukhompuyutha ibe isignali kagesi eshintshiwe ukuze idluliselwe ngamadivayisi ngezintambo zekhebula futhi lesi signali kagesi yehliswa eceleni kowamukelayo ngeModemu ukuze ikwazi ukubuyisela idatha yedijithali.
Isebenza kanjani iModemu?
Imodemu ivamise ukuba nayo amalambu/ama-LED phambi kwabo ukuze ukwazi ukubona kalula okwenzekayo ngaleso sikhathi.
Ngokuyisisekelo, kukhona amalambu/ama-LED amane atholakala ngaphambili kwemodemu asebenza ngezinjongo ezihlukile.
- Isibani esisodwa sibonisa ukuthi iyunithi ithola amandla.
- Okunye ukukhanya kukhombisa ukuthi imodemu ithola idatha kumhlinzeki wesevisi ye-inthanethi (ISP).
- Eyesithathu ibonisa ukuthi imodemu ithumela idatha ngempumelelo.
- Eyesine ibonisa ukuthi amadivayisi axhunyiwe afinyelela i-i
Ngakho, by ukubona ukuthi iyiphi i-LED noma ukukhanya okusebenzayo noma okucwayizayo, ungabona kalula ukuthi imodemu yakho yenzani okwamanje noma ukuthi yini engaphakathi kuyo njengamanje. Uma izibani ezithumelayo noma ezamukelayo zicwayiza, kusho ukuthi umhlinzeki wakho wesevisi ye-inthanethi unezinkinga ezithile futhi udinga ukubonisana nazo.
Imodemu ixhuma umthombo we-inthanethi osuka ku-ISP uye ekhaya lakho noma kwezinye izindawo ofuna ukufinyelela kuzo amadivaysi e-inthanethi usebenzisa izintambo ezifana ne-Comcast, i-fiber optics, isathelayithi nanoma yiluphi uxhumano lwefoni lokudayela. Amasevisi ahlukene anezinhlobo ezahlukene zamamodemu futhi awukwazi ukuwashintshanisa.
Ukufinyelela i-inthanethi ezindaweni zasemakhaya lapho olayini bezingcingo zikhona kodwa alukho ukusekelwa kwezinsizakalo ze-TV ne-inthanethi ezisekelwe kuzintambo, I-DSL isetshenziswa esikhundleni sezintambo zesimanje ngokuvamile ezihamba kancane.
Ubuhle nobubi beModemu
Izinzuzo
- Ixhuma ku-an I-ISP .
- Ukuhambisana kwe-ISP
- Iguqula isignali yedijithali ibe isignali ye-analog ukuze idluliselwe ngekhebula.
Ububi
- Ayikwazi ukudala inethiwekhi yendawo futhi isebenzise i-Wi-Fi.
- Ayixhumi amadivayisi amaningi ku-inthanethi.
Funda futhi: Yini Isishayeli Sedivayisi?
Irutha
I-router iyidivayisi yokuxhumana idlulisa amaphakethe edatha phakathi kwamanethiwekhi ekhompyutha . Ngokuyisisekelo, a umzila yibhokisi elincane elihlanganisa amanethiwekhi amabili noma ngaphezulu njenge-inthanethi nenethiwekhi yendawo. Idatha ethunyelwe yi-inthanethi njenge-imeyili nanoma yiliphi ikhasi lewebhu iwuhlobo lwamaphakethe. Lawa maphakethe abe esedluliswa esuka kwenye irutha aye kwenye irutha nge-inthanethi aze afike lapho aya khona. Uma iphakethe ledatha lifinyelela kunoma yimuphi wale migqa, irutha ifunda ikheli lendawo yalelo phakethe ledatha bese ilidlulisela kunethiwekhi elandelayo lapho liya khona.
Uhlobo olujwayeleke kakhulu lwamarutha amarutha asekhaya noma ama-routers asehhovisi. Amarutha ayimishini ezimele yodwa. Amarutha anekhodi enemibala ezinikele Imbobo ye-Ethernet eyisebenzisayo ukuxhuma ngokomzimba kumzila njenge I-WAN (inethiwekhi yendawo ebanzi) kanye nezimbobo ezine ze-Ethernet ezengeziwe ze-LAN (inethiwekhi yendawo yendawo).
Isebenza kanjani i-Router?
I-router iza ngawo wonke amasayizi nezintengo. Ezingenantambo zihlanganisa izimpondo ezimbili zangaphandle noma ngaphezulu kuye ngemodeli. Futhi, isivinini sokuxhuma kwe-router sincike ekusondeleni kwe-router.
Ukusebenza kwe-router kulula kakhulu. Ixhuma amanethiwekhi amaningi kanye nemizila yethrafikhi yenethiwekhi phakathi kwawo. Ukuze uqonde ukusebenza kwerutha ngamagama alula, cabanga nje irutha njengomxhumanisi phakathi koxhumano lwe-inthanethi nenethiwekhi yendawo. Irutha iphinde inikeze ukuvikeleka kumadivayisi akho ukuze angavezwa ngokuqondile ku-inthanethi. Awukwazi ukuxhuma ngqo ku-inthanethi usebenzisa irutha nje. Esikhundleni salokho, umzila wakho kufanele usetshenziswe ngokuhambisana neModemu njengoba idlulisa ithrafikhi ngoxhumano lwe-inthanethi.
Izinzuzo nezingozi ze-Router
Izinzuzo
- Ukuxhumeka ngesikhathi esisodwa kumadivayisi ambalwa
- Ukuphepha Nokuguquguquka
- I-VPN ukusetshenziswa
- Ubuchwepheshe obungenantambo
- Ukuphatheka
Ububi
- I-Data Overhead
- Ukusetha Okuyinkimbinkimbi
- Kuyabiza
Umehluko phakathi kweModemu nerutha
Ngezansi kunomehluko phakathi kwemodemu nerutha.
1. Umsebenzi
Imodemu ifana nomhumushi phakathi kwe-inthanethi nenethiwekhi yendawo. Imodemu ishintsha isignali kagesi ibe isignali yedijithali futhi yehlise isignali yedijithali ibe isignali ye-analog kuyilapho umzila udala inethiwekhi futhi ivumela amadivayisi amaningi ukuthi axhume kule nethiwekhi.
Uma unedivayisi eyodwa kuphela, awudingi noma iyiphi irutha. Imodemu inembobo ye-Ethernet futhi ikhompuyutha nanoma iyiphi enye idivayisi ingaxhumeka ngokuqondile kule port ye-Ethernet futhi ifinyelele i-inthanethi. Kodwa uma unamadivayisi amaningi, ungaxhuma ku-inthanethi usebenzisa inethiwekhi eyakhiwe umzila bese ungakwazi ukuxhuma ku-inthanethi.
2. Izixhumanisi
Imodemu inembobo eyodwa kuphela futhi ingaxhuma kudivayisi eyodwa kuphela ngesikhathi okungukuthi kukhompuyutha noma umzila. Ngakho-ke, uma unamadivayisi amaningi, awukwazi ukuwaxhuma wonke usebenzisa imodemu. Yingakho i-router idingeka.
Ngokuphambene, umzila ungaxhuma kumadivayisi amaningi ngesikhathi ngezintambo ze-Ethernet noma nge-Wi-Fi.
3. Ezokuphepha
Ayikho indlela yokuvikela eyakhelwe ngaphakathi kuModemu futhi ayiskeneli idatha nganoma ikuphi ukuba sengozini kwezokuvikela. Ngakho-ke, ingadlulisela izinsongo kuwo wonke amakhompyutha axhunyiwe.
Ngenkathi irutha iqukethe ama-firewall afanelekile ukunikeza ukuvikeleka. Ihlola kahle amaphakethe wedatha ukuze inqume lapho aya khona bese ivimbela noma yikuphi ukuhlasela ekungeneni kumadivayisi axhunyiwe.
4. Ezizimele
Imodemu ingasebenza ngaphandle kwanoma iyiphi irutha futhi ingahlinzeka ngoxhumo lwe-inthanethi kudivayisi eyodwa.
Ngakolunye uhlangothi, irutha ingabelana ngolwazi phakathi kwamadivaysi amaningi kodwa ayikwazi ukunikeza i-inthanethi kulawa madivayisi ngaphandle kwemodemu.
5. Uhlobo lwedivayisi nesendlalelo
Imodemu iyidivayisi esebenzayo esekelwe ku-inthanethi esebenzisa isendlalelo sesibili okungukuthi isendlalelo sesixhumanisi sedatha .
Irutha iyithuluzi lenethiwekhi elisebenzisa isendlalelo sesithathu okungukuthi isendlalelo senethiwekhi.
Uyidinga nini imodemu noma irutha?
Ukusetha inethiwekhi yasekhaya, kokubili imodemu nerutha kuyadingeka. Uma uxhuma idivayisi eyodwa ku-inthanethi ngocingo, udinga imodemu kuphela kuyilapho lingekho icala elinjalo lapho ungasebenzisa khona umzila nje. Uyohlala udinga ukusebenzisa Imodemu ngokuhlanganyela Nomzila ukuze ukhiphe ikhodi kumhlinzeki wakho wesevisi ye-inthanethi (ISP).
Uma usuvele usebenzisa imodemu kodwa ungasitholi isivinini osifunayo ku-ISP ungasebenzisa i-Router ukusheshisa inethiwekhi yakho. Inemikhawulo yomkhawulokudonsa futhi isakaza isignali kuwo wonke amadivayisi axhunyiwe. Empeleni, okwenziwa umzila wakho ukuthi udala uxhumano Okungenantambo futhi ilawule i-Wi-Fi yakho (I-inthanethi).
Ngakho-ke, konke lokhu kumayelana nemodemu nerutha kanye nomehluko othile phakathi kwakho kokubili.
Izithenjwa:
Elon Decker U-Elon ungumbhali wezobuchwepheshe e-Cyber S. Ubelokhu ebhala imihlahlandlela yokuthi kwenziwa kanjani cishe iminyaka eyi-6 futhi uhlanganise izihloko eziningi. Uthanda ukumboza izihloko ezihlobene ne-Windows, i-Android, namaqhinga namathiphu akamuva.