Shabakadaha Computer: sifooyinka ugu muhiimsan, qoondaynta iyo mabaadi'da ururka

aadanaha Modern ficil ahaan ma noolaan karaan iyagoo aan kombiyuutarada, iyo dhab ahaantii ma ay waqti dheer ka hor. In ka badan labaatan sano ee la soo dhaafay, kombiyuutarada waxay noqdeen qayb muhiim ah oo dhammaan goobaha, xafiiska baahida waxbarasho, sidaas ku abuurtay baahida loo qabo in la horumariyo fursadaha of technology computer iyo horumarinta software la xiriira.

network A kombiyuutarada ka dhigtay in ay suurto gal ma aha oo kaliya in la kordhiyo wax soo saarka , laakiin sidoo kale loo yareeyo kharashka ay dayactir, iyo sidoo kale in la yareeyo waqtiga la isugu gudbiyo xogta. In si kale loo dhigo, network computer uu leeyahay laba ujeedo: qaybsiga software iyo hardware, iyo sidoo kale dadka u furan in ay khayraadka xogta.

Dhismaha shabakadaha computer oo ku salaysan mabda'a "macmiilka-server". macmiilka - qayb naqshadda la isticmaalayo login iyo password adeegsanayaa awoodaha ee server ka. server The, markeeda, waxay siisaa khayraadka ay network qaybgalayaasha kale. Waxaa laga yaabaa in lagu shubo, abuurista database caadi ah, isticmaalka aqbasho-saarka, iwm

Networks iman dhowr qaab:

- maxaliga ah;

- goboleed;

- Global.

Halkan, waa cadaalad in la tilmaamo mabaadi'da on kaas oo ku salaysan yihiin kala duwan shabakadaha computer.

Ururka shabakadaha computer degaanka

Sida caadiga ah, shabakadaha kuwaas oo isku keeno dadka ku jira dhaw, sidaas oo kale ayaa inta badan la isticmaalo xafiisyada iyo shirkadaha for kaydinta iyo processing, wareejinta natiijooyinka si ay u qaybgalayaasha kale.

Waxaa jira wax sida "topology network" sida. Si fudud u gelin, waa jaantuska a joomateri shabakad kombiyuutarada. Waxaa jira daraasiin qorsheyaasha sida, si kastaba ha ahaatee, waxaan ka fiirsan kaliya aasaasiga ah ee: baska, giraanta oo star.

1. Bus - channel ah isgaarsiinta in isku daraa qanjidhada ee shabakadda. Mid kasta oo ka qanjidhada ka heli kartaa macluumaad waqti kasta ku haboon, iyo gudbiyaan - kaliya haddii baska waa lacag la'aan.
2. Ring. In topology this unugyada ku xiran ee taxanahan on goobada, i.e. idaacadi ugu horeysay oo lala labaad iyo wixii la mid ah, oo waa inuu la xidhiidhaa dambe kii hore ka shaqeeya, sidaas dhow giraanta. khasaare ugu weyn ee naqshadda dhismaha waa in dul failure of yaraan hal element of network oo dhan curyaan ah.
3. Star - xarunta at kaas oo rays qanjidhada ku xiran xarunta. model xiriir Tani si ay u tagaan la times kuwa fog, marka kombiyuutarada ahaayeen arrin weyn, oo kaliya mashiinka ee waalidku ku helo iyo maaraysa macluumaadka.

Iyadoo la tixgelinayo shabakadaha caalamiga ah, ka dibna wax kasta oo wax badan oo adag. Si aad u taariikhda, kuwaas oo ay jiraan in ka badan 200. The ugu caansan iyaga ka mid ah - Internet-ka.

Farqiga ugu muhiimsan ee ka aagga maxaliga ah - la'aanta ah ee xarunta maamulka ee muhiimka ah.

network computer noocan oo kale ah si ay u fuliyaan shaqada on laba arrimood:

- barnaamijyada server posted on goobaha web in la isticmaaleyaasha adeegga macaamiloon ah,

- barnaamijyada macmiilka kaalinta on PC user iyo server u isticmaala adeegyada.

shabakadaha Global u ogolaadaan isticmaalayaasha inay helaan adeegyada kala duwan. Xidhmaan shabakadaha sida laba siyaabood: iyada oo dadweynaha khadka taleefanka iyo channel ee dadaalka badan u wareegeen.