WANs

Mu zopezera kompyuta kuonetsetsa mulingo ngakhale a mfundo za ntchito ndi mamangidwe network otchedwa ndondomeko. Iwo anabwera mu hardware ndi mapulogalamu. Hardware zipangizo (polumikizira) imayendetsedwa pa mfundo thupi wosanjikiza, ndipo ntchito pa deta ndi chithandizo chapadera mapulogalamu.

LANs ndi WANs anafotokozedwa ndi zimene ndondomeko ntchito. The kompyuta maukonde ali makamaka ntchito ingachititse umodzi wa mfundo onse maukonde ndi kulumikiza kompyuta malo, nyumba, mbewu.

WANs kuphimba, monga ulamuliro, m'madera ambiri. Iwo kuphatikiza makompyuta munthu aliyense payekha ndi kulumikiza malo m'dera pogwiritsa ntchito ndondomeko zosiyanasiyana.

ntchito za chitukuko zinthu zamakono N'zosatheka pothandiza anthu mofulumira ndipo kuwombola mofulumira zambiri. WANs yadaikidwa kuti vuto limeneli. The chikhalidwe zofunikira kugwira ntchito Intaneti awa ndi yomweyo kufala kwa mudziwe , kaya makompyuta amachotsedwa Chrixitu.

Global zopezera - ichi ndi maukonde amenewa, womwenso kompyuta ili m'madera ambiri nambala malire makompyuta olumikizidwa kwa maukonde. Mlingo deta mu maukonde n'chozama kupitirira m'deralo.

ndondomeko Computer maukonde

Global maukonde amathandiza ndi TCP / IP, ATM, MPLS, ndi ena. Ambiri protocol - ndi TCP / IP, kuphatikizapo boma protocol. Iwo - subprotocol ntchito, zoyendera network kugwirizana ndi thupi.

mapulogalamu kwambiri ntchito pa mlingo ntchito ndipo ndi ndondomeko zawo. Iwo - HTTP, Www, etc. Ndondomeko ndi udindo kumupatsira ndi khalidwe mudziwe amawathandiza.

protocol Transport zipangitsa deta yobereka ntchito yake kuti angathe kuzigwiritsa ntchito. TCP amatchedwa.

protocol Network IP ndi udindo kulandira ndi kutumiza zopempha mlingo m'munsi kuti zonse zofunika.

Channel ndi wosanjikiza thupi ndi udindo tipeze njira ndi deta kufala zinthu.

Mumadziwika Intaneti padziko lonse: mwachitsanzo, Www (Padziko Lonse Web). maukonde tichipeza maseva kuti kusunga malangizo koyenera kuti owerenga makompyuta munthu amene amalandira mauthenga ochokera polumikiza ndi kutsegula kwa iwo. Www Network - yabwino ndi yosavuta kugwiritsa ntchito.

Intaneti Global monga subnetwork wopangidwa mwa zigawo zosiyana monga mizere kulankhulana ndi zinthu kusinthitsa. Kuti azitha kulankhulana mwinamwake kudziwika njira kapena misewu, pa iwo, deta ndi anasamukira ku makina kwa makina.

Kusintha zinthu kuti ntchito kulumikiza mizere kulankhulana, amatumikira monga routers. Iwo - apadera kompyuta.

WANs ambiri ali ambiri matelefoni ndi zingwe kuti kulumikiza awiri routers.

A kuthekera chachiwiri yolumikizana pakati pa routers kugwirizana wailesi, pogwiritsa ntchito Satellite kapena repeaters lapansi. Aliyense rauta ali mlongoti yake, umene ndi angathe kulandira ndi kutumiza chizindikiro. Network routers mosavuta otengedwa chizindikiro ilili, ndi zina, ali ndi mwayi woti amve zambiri za opatsirana mu routers oyandikana kuti kutumiza deta Kanema wa. Mu ena WANs, onse routers cholukanalukana wamba ziwiri mfundo subnet, kachipangizo kupatsidwa okha ena a iwo. Intaneti Satellite amaulutsidwa ndipo kwambiri kufunika kulikonse pofuna kulengeza.