Kwamfutocin, Bayanai fasahar
Bayanai watsa hanyoyin - daga cikin takarda zuwa e-mail
Daga a tarihi mai nisa, duk wayewar su ne bisa ajiya da kuma watsa bayanai. A tsawon lokaci, watsa bayanai hanyoyin canja. Yana duk fara da magana. By maganar bakinka shige sagas da Legends, na da tarihin mutanen samo asali. Sa'an nan da hanyoyi garzaya manzanni da haruffa. Ta ƙarni sun zama postmen kuma a rayuwarmu daidaita tarho dangane. Yau, takarda haruffa kusan auku a cikin disuse, da tarho nan da sannu zã gaba daya maye gurbin Internet. More kuma mafi mutane fi son don sadarwa da kuma raba bayanai ba a kan waya, kuma via da Internet cibiyar sadarwa, domin shi ne da suke boye ya fi sauri watsa bayanai fasaha.
Duk da haka, duk da fasaha ci gaba, daya daga cikin manyan hanyoyin da za a wuce wasu bayanai da ya rage takarda. Yau, takardu suna samuwa a biyu takarda da lantarki form. Domin musayar lantarki takardun kowane rana tasowa sabon wajen yada bayanai. Ga na farko wuri da aka dauka ta hanyar e-mail. Tare da shi, da mai karɓa sami wata wasika kusan nan da nan, ya iya zama a cikin abin da kusurwa na duniya. e-mail aiki tayin e-mail sabobin cewa ta karbi bakuncin dubban mailboxes - abin da ake kira asusun. Bugu da kari zuwa e-mail bayanai ne daukar kwayar cutar via ICQ, Skype da kuma irin shirye-shiryen. Akwai kuma mafi m hanyar sadarwa - da Internet taro. Internet telephony taro da aka ba maye gurbin saboda sun buƙaci high-gudun dangane da World Wide Web.
canja wuri da bayanai daukan wuri ko dai ta hanyar kwamfuta cibiyar sadarwa ko via kafofin watsa labaru kamar CD-ROMS, Flash-tafiyarwa, da kuma m SSD-tafiyarwa. Computer networks suna da nasu rarrabuwa. Suka sãɓã wa jũna a cikin sharuddan ƙasa, topology, da kuma wani iko Hanyar. Mai da kananan ɗaukar hoto LANs - su nesa tsakanin nodes ne kawai 'yan mita. Na biyu wuri ne shagaltar da kamfanoni da cibiyoyin sadarwa - su ne samuwa a cikin ofishin, ko da sha'anin. Babbar ne yankin cibiyar sadarwa, wanda daidai da hawansa, zuwa kashi-shiyya da duniya.
Bisa ga topology na cibiyar sadarwa ya kasu kashi uku Categories. Bas cibiyar sadarwa kwakwalwa da alaka da wannan line, da kuma bayanai da aka ruwaito daga daya kwamfuta nan da nan zai zama samuwa ga kowa da kowa kuma. A zobe cibiyar sadarwa nodes suna bin juna. The bayanai a shi ne daukar kwayar cutar a cikin wani unilateral shugabanci. Star cibiyar sadarwa da ciwon tsakiyar iko naúrar, wanda diverge daga wani layi-haskoki zuwa wasu nodes.
Nau'in na cibiyar sadarwa management biyu. A irin "abokin ciniki-uwar garke" na cibiyar sadarwa gudu manyan sabobin, da kuma sauran kwamfutocin ne abokan ciniki da kuma suna da wani sakamako a kan hanyar sadarwa. A wucin gadi irin duk cibiyar sadarwa nodes ne cikakken daidai. Su kowane mai amfani da yanke shawarar abin da manyan fayiloli ko fayiloli zai zama samuwa ga duk. Irin wannan sadarwa suna sosai talauci kare da Hacking.
All yiwu watsa bayanai da hanyoyin da daya kewaye. Yana hada aikawa bayanai, a watsa tashar da karɓa bayanai. A tashoshi bambanta a bayanai watsa kudi, auna a ragowa / s da sau dabi'u. A duk duniya Internet cibiyar sadarwa kafofin na bayanai da ake kira sabobin, alhali kuwa wadanda suka yi amfani da shi - masu amfani. Kamar yadda wani janar mulki, da mabukaci shiga cikin wani duniya na cibiyar sadarwa via fiber-na gani na USB. Kwanan nan, duk da haka, a cikin kowa yin amfani hada mara waya ta Internet access hanyoyin, wanda amfani da fasahar kamar Wi-Fi ko Bluetooth. Daya iya ba amma tuno da hannu networks, kamar yadda more kuma mafi mutane amfani mobile internet ko 3G-modem, wanda yana amfani da WAP, ko GPRS ladabi.
Saboda haka, bayanai watsa hanyoyin nasara juna har shi ya bude Internet. Tare da ci gaban sabuwar fasahar da World Wide Web ne mafi zama da kuma mafi araha, alhãli kuwa ba a madadin duk wata hanyar sadarwa.
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