Wonke umuntu ophilayo endaweni ezinabantu abaningi yedolobha lanamuhla idinga ukwazi ukuthi ngabe eziyingozi-Wi-Fi impilo. Futhi akunandaba ukuthi nguyena isebenzisa umakhalekhukhwini, kukhompyutha yakho, ithebhulethi noma kunoma iyiphi enye idivayisi olukwazi ezisebenza nge link engenantambo. Imvamisa High amaza omsakazo azungeze isakhamuzi yonke indawo, ngisho embhedeni wakhe. City - a "umzimba" olulodwa lapho indoda engananazi, ngandlela-thile, kuthinte nezinye izakhamuzi. Isimo ehluke ngokuphelele nasemizaneni, lapho ngisho isignali ye nesiteshi ka-opharetha mobile kungase kube nzima "abanjwe". Ngakho-ke, isihloko sethu sendlela eziyingozi ngabe i-Wi-Fi, kuyoba nesithakazelo ngokuyinhloko izakhamuzi emadolobheni.
Uma othile uthola ngengozi engaba khona luyakhohlisa, khona-ke kulula ukubona imicabango ukutholakala. Kuyinto ngokwanele ukuze ujike-Wi-Fi module cell phone yakhe futhi scan ezizungezile. Ngokuqinisekile kukhona esikrinini uhlu zokungena. Ngokwesibonelo, ngokuqondene nathi, butholakala kuphela 'isizotha »Cisco S2970, kodwa uma i-Wi-Fi okubi, khona-ke kwanele noma impilo engeyinhle. Njengoba wazi, lehle kancane uyakwazi kancane kancane abhubhise ngisho itshe.
Njengoba kuvamisile, ososayensi abaningi baqaphela ukufuna impendulo yombuzo ophathelene nokuthi-Wi-Fi luyingozi, kuyize. Lapho imali eningi abathintekayo, iqiniso ayitholakali. Zama baziqonde bona ngokwabo kanye ukukholelwa iziphetho noma cha - kuyindaba yangasese yomuntu ngamunye.
Wi-Fi - ingenye uhlobo ukudluliswa engenantambo idatha digital. Idivayisi ngalinye ongasebenza kuzo zombili umamukeli bese Lidlulisela. Uma ifoni ephathekayo ye-GSM yakhelwe ngokuyinhloko okuxhumana izwi, i-Wi-Fi - ukuze exchange of amakhodi kanambambili. Imvamisa yokusebenza inikezwa fixedly esezingeni futhi 2.4 GHz. Buhle imishini yezokuxhumana engenazo izintambo enjalo kusobala - asikho isidingo ukusebenzisa ikhebula yokuxhuma.
Ngakho ezimbi khona-Wi-Fi? Ukuze siphendule, masikhumbule Yiqiniso Physics, Isigaba of Electrical Engineering. Ngisho emuva ngo-1831 isazi sesayensi esidumile UMichael Faraday wathola buyinto emangalisayo okuthiwa lokungeniswa kagesi. incazelo Its ilula: Uma umqhubi esiyingxenye ngesimiso somshini esivalekile, inkambu kushintshana ukwenza, e crystal yayo ngehele kwenzeka angesabi (eyenga) zamanje. Lapho ensimini imigqa ukuwela umqhubi, bazolokhu isizukulwane samanje.
amagagasi Radio - lena elifanayo ensimini kagesi. ? Nakuba okwamanje namanje ukuphendula umbuzo, "Iyingozi hhayi ngabe i-Wi-Fi», Kodwa kwenza kube nokwenzeka ukuba singaphethi ngokuthi umthelela emzimbeni womuntu (igazi, uketshezi - iziqondiso kakhulu) namanje kusenjalo. Ngokuvamile, ucwaningo lubonisa ukuthi i-Wi-Fi amandla efoni lingaphansi cishe 10 izikhathi kunalokho GSM amafoni. Kodwa lokhu kumane nje kuyingxenye yomthwalo iqiniso. Bheka ugesi sekhompyutha - kuyinto encane futhi ukukhanya. Transformer besikhundla kwakuyokwenzeka okufanayo okukhulu hhayi ngaphansi kwengxenye kilogram. Lokhu kwenziwa ngokusebenzisa wavelet uguqule isimiso. Uma lwamanje ephansi, kodwa ukwandisa imvamisa, it ikuvumela ukuba ugcine ngaphandle kokushintsha amandla okukhipha. Isiphetho: akunandaba ukuthi amandla GSM ngenhla. Ngo-Wi-Fi izikhathi eziningana ephakeme imvamisa, okuyinto ivala ngokugcwele ngoba umehluko. Ngaphezu kwalokho, ngokuchichima imithombo ukukhanya kubangela ngumkhuba we wave ukuphazamiseka, okwenza kukhule isimo.
Isihloko umonakalo-Wi-Fi inkulu ukuze indiva esihlokweni esisodwa. Yonke idatha zomphakathi, ukuze noma ngubani ibona kunesidingo, uwafunde.