Video: Qhov System Overview Diagram yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov System Overview Diagram , tuaj yeem pab koj txheeb xyuas lub tsev blocks ntawm koj qhov system , tsis tas yuav txiav txim siab, tseem, yog tias lawv yuav tsum yog Hardware, Software lossis mechanics. Cov System Overview Diagram yog kos ua ntej phua rau hauv HW thiab SW thaiv daim duab.
Tsis tas li ntawd, lub ntsiab lus ntawm qhov system yog dab tsi?
Txheej txheem cej luam yog Dashboard widget uas muab ntau yam qhov system cov ntaub ntawv suav nrog stats, graphs, thiab cov neeg siv tsis ntev los no.
Ib tug kuj yuav nug, dab tsi yog daim duab kos duab siv rau? System Diagrams yog cov qauv siv kom pom kev nthuav qhia lub zog dynamic ua raws li cov khoom ntawm cov txheej txheem thiab kev sib cuam tshuam ntawm cov rog. System Diagrams muaj ntau tshaj li cov txheej txheem khiav.
Hauv qhov no, qhov system ciam teb yog dab tsi?
A system ciam teb yog ib daim duab plaub uas koj tuaj yeem kos rau hauv cov ntaub ntawv siv daim duab cais cov ntaub ntawv siv uas yog sab hauv rau a qhov system los ntawm cov neeg ua yeeb yam uas yog sab nraud qhov system . A system ciam teb yog ib qho kev xaiv pom kev pab hauv lub daim duab ; nws tsis ntxiv semantic tus nqi rau tus qauv.
Dab tsi yog qhov system architecture daim duab?
Ib daim duab kos duab kos duab yuav raug siv los qhia txog kev sib raug zoo ntawm qhov sib txawv cov khoom . Feem ntau lawv tau tsim rau cov tshuab uas suav nrog kho vajtse thiab software thiab cov no tau sawv cev hauv daim duab qhia kev sib cuam tshuam ntawm lawv. Txawm li cas los xij, nws kuj tuaj yeem tsim rau cov ntawv thov web.
Pom zoo:
Dab tsi yog qhov dav thawj qhov kev tshawb nrhiav thiab qhov tob thawj qhov kev tshawb fawb?
BFS sawv rau Breadth First Search. DFS sawv cev rau Kev Tshawb Nrhiav Qhov tob. 2. BFS (Breadth First Search) siv Queue cov qauv ntaub ntawv los nrhiav txoj hauv kev luv tshaj. BFS tuaj yeem siv los nrhiav ib qhov chaw luv tshaj plaws hauv cov duab tsis hnyav, vim tias hauv BFS, peb mus txog qhov kawg uas muaj qhov tsawg kawg nkaus ntawm cov npoo los ntawm qhov chaw vertex
Dab tsi yog sparse kem Dab tsi yog qhov zoo thiab qhov tsis zoo?
Koj poob 4 bytes tsis yog ib zaug ib kab; tab sis rau txhua lub cell hauv kab uas tsis yog null. Qhov zoo ntawm SPARSE kem yog: Qhov tsis zoo ntawm SPARSE kem yog: SPARSE kem tsis tuaj yeem siv rau ntawm cov ntawv, ntext, duab, timestamp, geometry, geography lossis cov neeg siv cov ntaub ntawv teev tseg
Dab tsi yog qhov qub txeeg qub teg Dab tsi yog qhov sib txawv ntawm qhov qub txeeg qub teg piav nrog piv txwv?
Inheritance yog ib txoj hauv kev kom tau txais cov yam ntxwv thiab kev coj cwj pwm ntawm ib chav kawm los ntawm lwm chav kawm. Cov chav kawm uas cov tswv cuab tau txais qub txeeg qub teg yog hu ua chav kawm hauv paus, thiab chav kawm uas tau txais cov tswv cuab tam sim no hu ua chav derived. Inheritance siv IS-A kev sib raug zoo
Dab tsi yog qhov zoo sib xws thiab qhov txawv ntawm relays thiab PLC yog dab tsi?
Relays yog electro-mechanical keyboards uas muaj coil thiab ob hom kev sib cuag uas tsis yog NO & NC. Tab sis Programmable Logic Controller, PLC yog lub khoos phis tawj me uas tuaj yeem txiav txim siab raws li qhov kev zov me nyuam thiab nws cov tswv yim & tso tawm
Dab tsi yog qhov sib txawv ntawm qhov ntsuas qhov ntsuas thiab qhov ntsuas thib ob?
Primary index: nyob rau hauv ib tug sequentially order file, qhov Performance index uas nws search key qhia cov sequential order ntawm cov ntaub ntawv. Kuj hu ua clustering index. Secondary index: ib qho Performance index uas nws qhov tseem ceeb tshawb nrhiav qhia qhov kev txiav txim sib txawv ntawm qhov kev txiav txim ntawm cov ntaub ntawv. Kuj hu ua non-clustering index