Ibhulogi

I-WLAN ingachazwa kokubili ngomqondo obanzi nangomqondo omncane: Ngokombono omncane, sichaza futhi sihlaziye i-WLAN ngazo zombili izinzwa ezibanzi neziwumngcingo. Ngomqondo obanzi, i-WLAN iyinethiwekhi eyenziwe ngokufaka enye noma yonke imidiya yokudlulisa ye-LAN enezintambo ngamaza omsakazo, njenge-infrared, l...

I-Constellation ingumqondo oyisisekelo ekushintsheni kwedijithali. Uma sithumela amasignali edijithali, ngokuvamile asithumeli u-0 noma u-1 ngokuqondile, kodwa siqale sakha iqembu lamasignali angu-0 no-1 (amabhithi) ngokuvumelana neyodwa noma ambalwa. Isibonelo, zonke izingcezu ezimbili zakha iqembu, okungukuthi, 00, 01, 10, kanye no-11. Kunezifunda ezine ...

Ukuqonda ukuxhumana kwedatha kunethiwekhi kuyinkimbinkimbi. Kulesi sihloko ngizobonisa kalula ukuthi amakhompiyutha amabili axhumana kanjani, adlulise futhi athole ulwazi lwedatha futhi nephrothokholi ye-Tcp/IP yesendlalelo ezinhlanu. Kuyini ukuxhumana kwedatha? Igama elithi "ukuxhumana kwedatha" i...

Amaswishi aphethwe aphakeme kunalawo angaphethwe ngokwemibandela yokusebenza, kodwa adinga ubuchwepheshe bomlawuli noma unjiniyela ukuze abone amandla azo ngokugcwele. Ukuphathwa okunembe kakhudlwana kwamanethiwekhi nozimele bedatha yawo kwenziwa kwenzeke ngokusebenzisa iswishi ephethwe. Ngokolunye uhlangothi, ...

Amaza okukhanya ayimisebe ye-electromagnetic ekhiqizwa ama-electron ngesikhathi sokunyakaza kwe-athomu. Ukunyakaza kwama-electron kuma-athomu ezinto ezihlukahlukene kuhlukile, ngakho amaza okukhanya awakhiphayo nawo ahlukile. I-Spectrum iyiphethini yokukhanya kwe-monochromatic ehlukaniswe uhlelo lokuhlakazeka (...

Incazelo yomqondo: I-Ethernet iyindinganiso evamile yokuxhumana esetshenziswa yi-LAN ekhona. Inethiwekhi ye-Ethernet isebenzisa ubuchwepheshe be-CSMA/CD (Carrier Sense Multiple Access and Conflict Detection) . I-Ethernet ibusa ubuchwepheshe be-LAN: 1. Izindleko eziphansi (ngaphansi kwemoto yenethiwekhi ye-Ethernet eyi-100...