Kodi modemu? Mfundo ntchito. mitundu ya modems

Koyamba kugwirizana ndi laputopu kapena PC ku Internet kuchokera kwa ogwiritsa zoipa Kuwadziwa, monga ulamuliro, funso n'lakuti: "Kodi modemu ndi chifukwa chake kuli kofunika" Monga mbali ya m'nkhaniyi adzapatsidwa modemu gulu, komanso atero ndi aligorivimu kwa unsembe wawo ndi kasinthidwe, kuchita amene ali mosavuta ndi novice kompyuta katswiri akhoza kusankha ndi kupeza ntchito chipangizo oterowo.

Ndi chiyani icho?

Kuyamba, tiyeni kuthana ndi chakuti modems amenewa. Ichi ndi wapadera chigawo kompyuta, limene lakonzedwa kuti kugwirizana kwa zopezera kompyuta. Mawu "modemu" aumbike mwa kaphatikizidwe mawu awiri. The oyamba - ndi modulator. Choncho zamagetsi likutchedwa chiwembu wapadera, zomwe encodes mbendera. Ndipo lachiwiri - ndi demodulator. Ndiko kuti, chipangizo chimene chimapangitsa ntchito ya osiyanitsidwa modulator. Mmodzi wa iwo encodes ndi transmits chizindikiro, ndipo chachiwiri alandira ndi otembenuka. Choncho, mpaka posachedwapa, kuti Internet kwambiri ndi kompyuta unali olumikizidwa mwa mawaya telefoni. Tsopano zinthu zasintha pang'onopang'ono Finyani ndi gawo msika wa makadi maukonde. Iwo, ndi liwiro ndi apamwamba, ndi zambiri mavabodi ali okonzeka ndi iwo. Koma pali modems opanda zingwe kuti alibe weniweni zina.

Pamene munafuna?

Tsopano tiyeni kuthana ndi milandu anthu omwe ali ofunikira. Kwenikweni, mfundo zimenezi zingakhale atatu. The woyamba tsopano pang'onopang'ono anazimiririka. Iye ndi kompyuta ndi thandizo pogwiritsa ndi mzere foni chikugwirizana Intaneti. Tsopano iye anakankhira NICs. Ndipo mtengo uli m'munsi, ndi mtengo kangapo apamwamba. Ndipo kulumikizana mu nkhani iyi dongosolo la udzakwaniritsidwa bwino. Koma a dongosolo "zikufuna-Bank" ngati chipangizo ayenera (choncho wachiwiri). Pomoschm pamene olumikizidwa kwa yowerengera wa Seva ndalama bungwe. Popanda kusiya ofesi, amatha kuchita kusamukira ndalama kapena funsani kupezeka kwa ndalama m'nkhaniyi. Liwilo mu nkhani iyi si chofunika. Koma kugwirizana chitetezo chofunika pa mlingo woyenera. Tsopano mabungwe ambiri mu mtundu uwu ndi ntchito ndi mabanki. Zikatero, pamene modems mu ankafuna, ngati wina amayenda kwambiri. Iye akusowa Intaneti opanda zingwe kugwirizana. Pankhaniyi, funso: "Kodi modemu, ndipo n'chifukwa chiyani ali ofunikira" - ukapezeka palokha. Mothandizidwa ndi njira zina luso, funso sitingapeze kuthetsedwa.

Mu njira kuphedwa

Mu njira kuphedwa zipangizo amenewa anawagawa mitundu iwiri: mkati (i.e., anaika mkati kompyuta wagawo) ndi kunja (kulumikiza chipangizo chotere kompyuta kuwonjezeka kagawo ntchito, laputopu kapena piritsi). Cha mtsogolo, muyenera kuika hardware lophimba (ngati) ku malo oyenera. Ndipo izo ziyenera kukhala funso ili: "Kodi mode modemu" Iwo digito kapena analogi - anatsimikiza ndi telefoni mzere chizindikiro. Opanda zingwe modems chilipo pokhapokha woyamba wa iwo. Intaneti onse ma ntchito okha mfundo imeneyi. Choncho, ngati lophimba palibe zipangizo opanda zingwe. Mfundo ina tisaiwale. Pa motherboards okalamba Integrated (ie, soldered) zipangizo zofanana. Koma tsopano salinso anawona pa ma PC latsopano.

malangizo pa polumikiza

Gulu lachiwiri, limene anali kwambiri yogawa chachikulu, zochokera njira kugwirizana. Malinga Msuzi deta ogaŵikana basi anatumizanso lamya ndi opanda zingwe. Mbali yoyamba pali cholumikizira wapadera kuti foni chingwe waikidwa. zipangizo achikulire kungakhale nkhani pa foni kapena ntchito pa Intaneti. Tsopano pali kusinthidwa wapadera zipangizo zimenezi. Iwo limakupatsani imodzi mafunde intaneti ndi kulankhula pafoni. Ichi ndi ADSL-modemu. Ndi chiyani icho? Converter Special, lomwe limapanga malire kucheza ndi chizindikiro opatsirana pa mafurikwense osiyana. Chifukwa cha yemweyo mitsinje deta awiri kuwapereka kwa pachingwecho. Zikatero, wachiwiri kufala deta amaperekedwa ndi cheza mu atomu popanda mawaya.

Ndi mtundu Intaneti anathandiza

Izi njira ndi yekhayo m'gulu zipangizo opanda zingwe. Malinga ndi iye, iwo ali a mitundu zotsatirazi: GSM (iwo amagwiritsidwa limatchedwa 2G), 3G ndipo LTE (4G ndi dzina lina). Onsewo ali m'mbuyo yogwirizana ndi mzake. Ie 3G mosavuta athe kugwira ntchito maukonde GSM. Komanso, pamene owerenga anadabwa kwambiri ndi chakuti munthu USB-modemu. Ndi mu ichi chinthu mawonekedwe kupanga kwambiri zipangizo zimenezi. Maonekedwe ndi galimoto kung'anima amene amapereka deta opanda zingwe. Ndithu ndi okonzeka ndi kagawo kwa SIM khadi. Polumikiza kwa cholumikizira amakona anayi YUSB PC.

opanga

Conventionally, opanga zipangizo akhoza kugawidwa m'magulu awiri. The oyamba - ndi angakwanitse ndipo pang'ono odziwika mtundu maina, kuphatikizapo Sierra (mtengo umayambirapo 180 rubles) ndi Sprint (mtengo wa zipangizo amenewa ndi 120-150 rubles). Koma m'kalasi yachiwiri - wotchuka ndi apamwamba zipangizo. Iwo wogulitsidwa zopangidwa ndi Pantech ndi Huawei. Mtengo kale 600 rubles ndi zambiri. Koma izi ziri zoona zipangizo opanda zingwe. Nthawi zambiri funso n'lakuti, kodi 3G-modemu. Izi chipangizo kakang'ono (zofanana kwambiri ndi ndodo zikuoneka), amene anaika mu woyendetsa mafoni a SIM khadi ndi ntchito chimathandiza kulankhulana ndi Intaneti. Nayenso mwa zipangizo yikidwa mawaya chimakhala chogwidwa ndi "D-Link" ndi "A-Corp". Ndi bwino kwa iwo kulabadira pamene kugula chipangizo oterowo. Mtengo wa ena zitsanzo gawo izi zikuyamba ku 120 rubles. Khalidwe la mosaphonya awo.

kusintha

Taganizirani ndondomeko ya kuika Internet modemu. Internet modemu ndi chiyani? Izi zonse, popanda yekha, zipangizo a kalasi: onse yikidwa mawaya ndi opanda zingwe. Kotero, momwe sintha:

• Kulumikiza. Pakuti kunja - ndi kukhazikitsa iwo patsogolo kagawo chipangizo kompyuta. Koma pamene khazikitsa makina onga mkati ayenera kuchotsa mbali pachikuto cha dongosolo makompyuta wagawo, kukhazikitsa khadi mu kagawo thambo kukonza ndi kusonkhana ndikubweza.
• Khazikitsa madalaivala. Nthawi zambiri izo zikuchitika basi, ndi kuchita nawo wosuta mu ndondomeko izi chabe. Kumapeto muyenera kuona uthenga pa unsembe bwino mapulogalamu. (Ngati satero, ndiye iwo ayenera kuikidwa pamanja kuchokera CD kapena ku Tsambali.)
• Kenako, kulumikiza ku intaneti.
• Pa chomaliza kukulozani osatsegula ndipo onani ntchitoyo kugwirizana.

Nthawi zina m'pofunika kusintha zoikamo ntchito devaysa (mwachitsanzo, kusintha njira akulembedwa analogi kwa digito). Mfundozi kaye WOPEREKA ndi telefoni woyendetsa.

chidule

Nkhaniyi yakhala anayankha kuti funso la chimene modems ndipo n'chifukwa chiyani ali ofunikira. The zotheka kuphedwa kwa zipangizo zimenezi. Anasonyeza modes awo a ntchito ndi makhalidwe ena luso. Komanso chikusonyeza khwekhwe aligorivimu, zotsatirazi zomwe n'zotheka mosavuta sintha chipangizo cha kulumikiza kwa maukonde.