Video: Cov ntaub ntawv wireless ua haujlwm li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Ib lub computer wireless adapter txhais cov ntaub ntawv mus rau hauv lub xov tooj cua teeb liab thiab xa nws siv lub kav hlau txais xov. A wireless router txais lub teeb liab thiab txiav txim siab nws. Therouter xa cov ntaub ntawv mus rau Is Taws Nem siv lub cev, xaim Ethernet kev sib txuas.
Ntawm no, yuav ua li cas cov ntaub ntawv tau kis wirelessly?
Lub network yuav muaj ib yam khoom hu ua a wireless Router uas lub cev txuas mus rau lub network nkag thiab yog li Internet ntawm kev kub ceev broadband lossis cable. wireless router siv lub cev kis tau cov ntaub ntawv thiab converts nws mus rau hauv xov tooj cua tsis, uas nws kis viaits antennae.
Tsis tas li ntawd, yog WiFi cov ntaub ntawv siv dawb? Lo lus teb tsis yog. Feem ntau, thaum koj lub xov tooj txuas nrog koj lub tsev lossis lwm lub network Wi-nkaus, nws yuav tsis txuas rau 5G, 4G, 3G, lossis txhua hom kev sib txuas wireless. cov ntaub ntawv siv ntawm Wi-Fi yuav tsis suav rau koj cov ntaub ntawv npaj.
Tom qab ntawd, ib tus tuaj yeem nug, kev xa xov wireless ua haujlwm li cas?
Cov transmitter siv cov ntaub ntawv xws li audio orvideo, encodes nws mus rau hauv lub sine muaj nuj nqi, thiab xa cov functionin rau huab cua nyob rau hauv daim ntawv ntawm ib tug electromagnetic yoj. Tus receiverdetects nthwv dej thiab txiav txim siab cov ntaub ntawv. Antennas yog siv los ntawm ob qho tib si transmitters rau xa nthwv dej thiab los ntawm receivers los ntes lawv.
Koj puas xav tau WiFi yog tias koj muaj cov ntaub ntawv tsis txwv?
Koj tsis txhob xav tau mus - mas WiFi isusually sai dua roaming-kev sib txuas. Technically, koj tsis txhob xav tau wifi . Txawm li cas los xij, feem ntau " tsis txwv " cov ntaub ntawv kev npaj muaj ib tug caveat tom qab ib tug npaum li cas ntawm cov ntaub ntawv kev siv koj ' re ceev yuav poob siab heev.
Pom zoo:
Vim li cas cov ntaub ntawv tiaj tus tsis zoo dua li cov ntaub ntawv sib raug zoo?
Ib lub rooj ua ntaub ntawv tiaj tus yog qhov tseem ceeb rau kev sau cov ntaub ntawv tsawg. Tab sis cov ntaub ntawv loj loj tuaj yeem ua tsis tau raws li nws siv ntau qhov chaw thiab nco dua li cov ntaub ntawv sib txheeb. Nws kuj yuav tsum tau muab cov ntaub ntawv tshiab ntxiv txhua zaus koj nkag mus rau cov ntaub ntawv tshiab, qhov kev sib raug zoo database tsis
Cov ntaub ntawv zoo li cas yog cov ntaub ntawv ua haujlwm?
Lub chaw ua haujlwm database yog qhov chaw rau cov ntaub ntawv khaws cia. Cov ntsiab lus hauv cov ntaub ntawv ua haujlwm tuaj yeem ntxiv thiab tshem tawm ntawm ya. Cov databases no tuaj yeem yog SQL lossis NoSQL-based, qhov tom kawg yog npaj rau kev ua haujlwm ntawm lub sijhawm
Koj ua li cas sau cov ntaub ntawv hla cov ntawv ua haujlwm?
Nias thiab tuav [Ctrl], thiab tom qab ntawd xaiv ntau dua ib daim ntawv. Nyem Kho> Sau> AcrossWorksheets. Lub Fill Across Worksheets dialog boxappears. Cov ntaub ntawv tau sau thoob plaws ntau daim ntawv teev npe raws li pab pawg
Vim li cas kem taw qhia cov ntaub ntawv khaws cia ua cov ntaub ntawv nkag ntawm disks sai dua li kab qhia cov ntaub ntawv khaws cia?
Kem oriented databases (aka columnar databases) yog qhov tsim nyog rau kev ntsuas kev ua haujlwm ntau dua vim tias cov ntaub ntawv hom ntawv (kem hom) qiv nws tus kheej kom nrawm dua cov lus nug ua - scans, aggregation thiab lwm yam. Ntawm qhov tod tes, kab oriented databases khaws ib kab (thiab tag nrho nws. kab) contiguously
Dab tsi yog cov teeb meem ntawm kev tswj cov ntaub ntawv hauv cov ntaub ntawv ib txwm muaj?
Nyob rau tib lub sijhawm, qhov kev tswj hwm cov ntaub ntawv ib puag ncig tsim teeb meem xws li cov ntaub ntawv rov ua dua thiab tsis sib xws, cov kev pab cuam-cov ntaub ntawv dependence, inflexibility, tsis muaj kev ruaj ntseg, thiab tsis muaj cov ntaub ntawv sib qhia thiab muaj