Video: Dab tsi yog txheej txheem tswj thaiv nrog daim duab?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Txheej Txheem Tswj Thaiv yog ib tug qauv ntaub ntawv uas muaj cov ntaub ntawv ntawm lub txheej txheem ntsig txog nws. Cov txheej txheem tswj thaiv tseem hu ua ib txoj hauj lwm tswj thaiv , nkag ntawm txheej txheem rooj, thiab lwm yam Nws tseem ceeb heev rau txheej txheem tswj raws li cov ntaub ntawv structuring rau txheej txheem yog ua los ntawm PCB.
Ib yam li ib tug yuav nug, dab tsi yog txheej txheem tswj thaiv piav qhia nrog daim duab thiab nws cov ntsiab lus?
A txheej txheem tswj thaiv (PCB) muaj cov ntaub ntawv hais txog txheej txheem , i.e. registers, quantum, priority, etc. Cov txheej txheem lub rooj yog ib qho array ntawm PCB's, uas txhais tau hais tias logically muaj PCB rau tag nrho ntawm tus tam sim no txheej txheem hauv tus qhov system.
Lub luag haujlwm ntawm cov txheej txheem tswj thaiv yog dab tsi? Cov luag hauj lwm los yog ua haujlwm ntawm txheej txheem tswj thaiv (PCB) hauv txheej txheem kev tswj hwm yog tias nws tuaj yeem nkag mus lossis hloov kho los ntawm feem ntau OS cov khoom siv nrog rau cov uas koom nrog kev nco, teem sijhawm, thiab cov khoom siv nkag / tso tawm. txheej txheem tswj blocks muab cov ntaub ntawv ntawm lub xeev tam sim no ntawm lub
Kuj Paub, dab tsi yog nyob rau hauv tus txheej txheem tswj thaiv?
Txheej Txheem Tswj Thaiv (PCB, tseem hu ua Task Controlling Thaiv , Kev nkag ntawm lub Txheej txheem Table, Task Struct, lossis Switchframe) yog cov qauv ntaub ntawv nyob rau hauv lub operating system kernel uas muaj cov ntaub ntawv xav tau los tswj kev teem caij ntawm ib qho tshwj xeeb. txheej txheem.
Dab tsi yog txheej txheem xeev piav qhia nrog daim duab?
Txheej txheem xeev : Nws sawv cev tam sim no xwm txheej ntawm txheej txheem . Tej zaum nws yuav tshiab, npaj, khiav lossis tos. Program counter: Nws qhia qhov chaw nyob ntawm cov lus qhia tom ntej kom ua tiav rau qhov no txheej txheem . CPU Registers: Lawv suav nrog index registers, stack pointer and general purpose registers.
Pom zoo:
Dab tsi yog qhov tsis zoo ntawm cov txheej txheem txheej txheem?
Ib qho tsis zoo ntawm kev siv Procedural Programming raws li ib txoj hauv kev programming yog qhov tsis muaj peev xwm rov siv tau cov lej thoob plaws hauv qhov program. Yuav tsum rov sau tib hom code ntau zaus thoob plaws ib qho kev pab cuam tuaj yeem ntxiv rau tus nqi tsim kho thiab lub sijhawm ntawm qhov project. Lwm qhov tsis zoo yog qhov nyuaj ntawm kev kuaj xyuas yuam kev
Dab tsi yog qhov sib txawv ntawm kev tswj hwm hauv cov txheej txheem tswj?
Ib qho kev hloov pauv hloov pauv yog qhov hloov pauv ywj pheej hauv kev sim. Lub manipulated los yog ywj siab sib txawv yog tus uas koj tswj. Cov kev hloov pauv uas tswj tau yog qhov uas koj ua kom tas mus li. Cov lus teb sib txawv los yog qhov sib txawv yog qhov tshwm sim los ntawm qhov kev sim (piv txwv li nws yog qhov tso zis sib txawv)
Lub luag haujlwm ntawm cov txheej txheem tswj thaiv yog dab tsi?
Lub luag haujlwm lossis kev ua haujlwm ntawm cov txheej txheem tswj kev thaiv (PCB) hauv cov txheej txheem kev tswj hwm yog tias nws tuaj yeem nkag mus lossis hloov kho los ntawm feem ntau OS cov khoom siv suav nrog cov neeg koom nrog kev nco, sijhawm teem sijhawm, thiab cov khoom siv nkag / tso tawm. txheej txheem tswj blocks muab cov ntaub ntawv ntawm lub xeev tam sim no ntawm lub
Qhov txheej txheem txheej txheem yog dab tsi?
Lub kaw lus tuaj yeem ua modular nyob rau hauv ntau txoj kev. Ib txoj hauv kev yog txheej txheej txheej, uas cov txheej txheem ua haujlwm tau tawg mus rau hauv ntau txheej (qib). Cov txheej hauv qab (txheej 0) id lub kho vajtse; qhov siab tshaj (txheej N) yog tus neeg siv interface. Txoj kev no ua kom yooj yim debugging thiab kev txheeb xyuas qhov system
Dab tsi yog qhov haujlwm ntawm OSI txheej txheej txheej txheej txheej txheem router ua haujlwm li cas?
Hauv Cov Qauv Qhib Kev Sib Txuas Sib Txuas (OSI) kev sib txuas lus, txheej txheej txheej txheem nyob ntawm Txheej 5 thiab tswj kev teeb tsa thiab rhuav tshem ntawm kev sib txuas ntawm ob qhov kev sib txuas lus kawg. Kev sib txuas lus ntawm ob qhov kawg yog hu ua kev sib txuas