Site na Admin / 23 Ọkt 22 /0Okwu Akụkọ ihe mere eme nke WLAN Enwere ike ịkọwa WLAN n'echiche sara mbara na n'echiche dị warara: Site n'echiche micro, anyị na-akọwapụta ma nyochaa WLAN n'echiche sara mbara ma dị warara. N'echiche sara mbara, WLAN bụ netwọk emere site na iji ebili mmiri redio dochie ụfọdụ ma ọ bụ niile nke wired mgbasa ozi LAN, dị ka infrared, l... GỤKWUO Site na Admin / 22 Ọkt 22 /0Okwu Otu kpakpando na Modulation dijitalụ Constellation bụ echiche bụ isi na mgbanwe dijitalụ. Mgbe anyị na-eziga akara dijitalụ, anyị anaghị ezipụ 0 ma ọ bụ 1 ozugbo, mana buru ụzọ mepụta otu akara 0 na 1 (bits) dịka otu ma ọ bụ ọtụtụ. Dịka ọmụmaatụ, ibe abụọ ọ bụla na-etolite otu, ya bụ, 00, 01, 10, na 11. Enwere steeti anọ ... GỤKWUO Site na Admin / 21 Ọkt 22 /0Okwu Nkọwa zuru oke gbasara nkwukọrịta data na netwọkụ kọmputa Iji ghọta nkwurịta okwu data na netwọk dị mgbagwoju anya. N'isiokwu a, m ga-adị mfe igosi ka kọmputa abụọ na-esi ejikọta ibe ha, nyefee ma nweta ozi data na Tcp/IP ise oyi akwa protocol. Kedu ihe bụ nkwukọrịta data? Okwu "nkwukọrịta data" i... GỤKWUO Site na Admin / 19 Ọkt 22 /0Okwu Ọdịiche dị n'etiti njikwa njikwa Vs enweghị njikwa yana nke ị ga-azụta? Mgbanwe ejiri achịkwa dị elu karịa ndị anaghị ejikwa ya n'ihe gbasara ọrụ, mana ha na-eme ka ọkachamara nke onye nchịkwa ma ọ bụ injinia ghọta nke ọma ikike ha nwere. A na-eme ka njikwa netwọkụ na okpokolo agba data ha kwe omume site na iji mgba ọkụ ejiriziri. N'akụkụ aka nke ọzọ, ... GỤKWUO Site na Admin / 13 Ọkt 22 /0Okwu Gịnị bụ Ìhè ife na nkọwa [Kwawara] Ìhè ebili mmiri bụ electromagnetic radieshon na-eme ka eletrọn na usoro nke atomic ngagharị. Ntugharị nke electrons na atọm nke ihe dị iche iche dị iche iche, ya mere ebili mmiri ha na-ebunye dịkwa iche. Spectrum bụ ụkpụrụ nke ọkụ monochromatic kewapụrụ site na sistemụ mgbasa (... GỤKWUO Site na Admin / 12 Ọkt 22 /0Okwu Uru na ụkpụrụ nke Ethernet Nkọwa echiche: Ethernet bụ ọkọlọtọ nzikọrịta ozi nke LAN dị adị nakweere. Netwọk Ethernet na-eji teknụzụ CSMA/CD (Carrier Sense Multiple Access and Conflict Detection) teknụzụ. Ethernet na-achịkwa teknụzụ LAN: 1. Ọnụ ego dị ala (ihe na-erughị 100 Ethernet netwọk ụgbọ ala ... GỤKWUO << < gara aga21222324252627Ọzọ >>> Peeji nke 24/74