Ulwazi

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 ngokugcwele amandla azo.Ukuphathwa okunembe kakhudlwana kwamanethiwekhi namafreyimu edatha 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...

Indlela yokufinyelela nokulawula amadivaysi ekhompyutha ahlukene ngokusebenzisa imidiya ku-LAN iqondwa kanje.Kudala, i-Ethernet yayisetshenziswa ukuxhuma yonke imigqa yamakhompyutha asekhaya ebhasini ukuze kuqhamuke ukuxhumana kwamakhompyutha.Uma usebenzisa le ndlela ukuthumela idatha, udinga...

1, Izinga lokushisa lokusebenza Izinga lokushisa lokusebenza le-module optical.Lapha, izinga lokushisa libhekisela ekushiseni kwezindlu.Kunamazinga okushisa amathathu okusebenza emoduli ye-optical, izinga lokushisa lokuhweba: 0-70 ℃;Izinga lokushisa lezimboni: – 40 ℃ – 85 ℃;Kukhona futhi i-exp...