Ibhlog

I-WLAN inokuchazwa kuzo zombini ingqiqo ebanzi kunye nengqiqo emxinwa: Ukusuka kwimbono encinci, sichaza kwaye sihlalutye i-WLAN kwiimvakalelo ezibanzi kunye nezimxinwa. Ngengqiqo ebanzi, i-WLAN yinethiwekhi eyenziwe ngokutshintshela enye okanye yonke imidiya yosasazo ye-LAN enentambo ngamaza erediyo, anje nge-infrared, l...

I-Constellation yingcamango esisiseko kwimodyuli yedijithali. Xa sithumela imiqondiso yedijithali, ngokuqhelekileyo asithumeli u-0 okanye u-1 ngokuthe ngqo, kodwa kuqala senze iqela leempawu ze-0 kunye ne-1 (iibits) ngokomnye okanye ezininzi. Umzekelo, onke amasuntswana amabini enza iqela, oko kukuthi, 00, 01, 10, kunye no-11. Zine iimo ...

Ukuqonda unxibelelwano lwedatha kwinethiwekhi kunzima. Kweli nqaku ndiza kubonisa ngokulula ukuba iikhompyuter ezimbini zidibana njani, zigqithise kwaye zifumane ulwazi lwedatha kunye ne-Tcp/IP yeprotocol yomaleko amahlanu. Yintoni unxibelelwano lweDatha? Igama elithi "unxibelelwano lwedatha" i...

Iiswitshi ezilawulwayo ziphezulu kunezo zingalawulwayo ngokwemigaqo yokusebenza, kodwa zifuna ubuchule bomlawuli okanye injineli ukuze baqonde ngokupheleleyo amandla abo. Ulawulo oluchanekileyo ngakumbi lothungelwano kunye nezakhelo zabo zedatha zenziwe ukuba zikwazi ukusebenzisa iswitshi elawulwayo. Kwelinye icala, ...

Amaza okukhanya yimitha ye-electromagnetic eveliswa zii-electron kwinkqubo yentshukumo yeathom. Ukushukuma kwee-electron kwiiathom zezinto ezahlukeneyo kwahlukile, ngoko ke amaza okukhanya eziwakhuphayo nawo ahlukile. I-Spectrum yipateni yokukhanya kwe-monochromatic eyahlulwe yinkqubo yokusasazwa (...

Inkcazo yengqiqo: I-Ethernet ngowona mgangatho wonxibelelwano uqhelekileyo owamkelwa yiLAN ekhoyo. Inethiwekhi ye-Ethernet isebenzisa i-CSMA / CD (i-Carrier Sense Access Multiple Access kunye ne-Conflict Detection) ubuchwepheshe. I-Ethernet ilawula iteknoloji ye-LAN: 1. Ixabiso eliphantsi (ngaphantsi kwe-100 yenethiwekhi ye-Ethernet imoto...