Na Admin / 09 Oct 22 /0Manaʻo manaʻo He aha ka Diode? [Wehewehe] Hoʻokumu ʻia ka Diode me kahi hui PN, a hiki i ka photodiode ke hoʻololi i ka hōʻailona opi i hōʻailona uila, e like me ia i hōʻike ʻia ma lalo nei: ʻO ka maʻamau, ua hoʻopili ʻia ka paʻa covalent i ka wā e hoʻomālamalama ʻia ka hui PN me ka mālamalama. Hoʻokumu kēia i nā lua a me nā pālua electron. Hoʻokumu ʻia ka photocurrent ma muli o ... Heluhelu hou aku Na Admin / 08 Oct 22 /0Manaʻo manaʻo Hoʻomaopopo mua o LAN ʻO LAN ka mea kaulana loa a mākou e hoʻohana nei i kēia lā. He aha ka LAN? ʻO ka Local Area Network (LAN) e pili ana i kahi hui o nā kamepiula i hoʻopili ʻia e nā kamepiula lehulehu ma kekahi wahi me ka hoʻohana ʻana i kahi ala hoʻolaha. ʻOi aku ka nui o kēia wahi, ʻoi aku ka nui o nā mea e hiki ke kamaʻilio me kekahi. A ʻo ka ... Heluhelu hou aku Na Admin / 29 Sep 22 /0Manaʻo manaʻo He aha ka Ethernet switch a pehea e hana ai? Me ka hoʻomohala wikiwiki ʻana o nā kamepiula a me kā lākou ʻenehana hoʻopili (ʻike ʻia ʻo "ʻenehana ʻenehana"), ua lilo ʻo Ethernet i ka ʻoihana kamepiula ʻelua-papa pōkole me ka helu kiʻekiʻe loa i kēia manawa. ʻO ka mea nui o Ethernet ka hoʻololi Ethernet. Manual a me... Heluhelu hou aku Na Admin / 28 Sep 22 /0Manaʻo manaʻo He aha ka VCSEL laser? ʻO VCSEL, i kapa ʻia ʻo Vertical Cavity Surface Emitting Laser i piha, he ʻano laser semiconductor. I kēia manawa, hoʻokumu ʻia ka hapa nui o nā VCSEL ma GaAs semiconductor, a ʻo ka lōʻihi o ka hawewe hoʻokuʻu ʻia i loko o ka pūʻulu nalu infrared. I ka makahiki 1977, ua hoʻokumu ʻo Polofesa Ika Kenichi o ke Kulanui o ʻenehana ʻo Tokyo ... Heluhelu hou aku Na Admin / 27 Sep 22 /0Manaʻo manaʻo Hoʻokaʻawale Pūnaewele o PAN, LAN, MAN a me WAN Hiki ke hoʻokaʻawale ʻia ka pūnaewele i LAN, LAN, MAN, a me WAN. Ua wehewehe ʻia a hoʻohālikelike ʻia nā manaʻo kikoʻī o kēia mau inoa. (1) Personal Area Network (PAN) Hiki i ia mau pūnaewele ke hiki i ke kamaʻilio pūnaewele pōkole ma waena o nā mea hoʻohana kelepona a me nā mea kamaʻilio. Heluhelu hou aku Na Admin / 26 Sep 22 /0Manaʻo manaʻo He aha ka hōʻailona hōʻailona hōʻailona hōʻailona (RSSI) i ka kikoʻī ʻO RSSI ka pōkole o ka hōʻailona hōʻailona loaʻa. Hoʻohālikelike ʻia ka hōʻailona ikaika o ka hōʻailona ma ka hoʻohālikelike ʻana i ʻelua mau waiwai; ʻo ia hoʻi, hiki ke hoʻohana ʻia e hoʻoholo i ka ikaika a i ʻole nāwaliwali o ka ikaika hōʻailona e hoʻohālikelike ʻia me kahi hōʻailona ʻē aʻe. Ka helu helu o RSSI... Heluhelu hou aku << < Mamua24252627282930Aʻe >>> ʻAoʻao 27 / 76