Puas yog ROM yog lub cim xeeb tsis hloov pauv?
Puas yog ROM yog lub cim xeeb tsis hloov pauv?

Video: Puas yog ROM yog lub cim xeeb tsis hloov pauv?

Video: Puas yog ROM yog lub cim xeeb tsis hloov pauv?
Video: txhob hnov qab kuv lub npe - Bee lee [Official MV] 2022-23 2024, Kaum ib hlis
Anonim

tsis yog - volatile nco . Hom ntawm nco uas khaws lawv cov ntsiab lus thaum fais fab tuag. ROM yog nonvolatile , hos RAM yog tsis hloov pauv . Lo lus no feem ntau hais txog CMOS nco hauv PCs uas tuav lub BIOS.

Tom qab ntawd, ib tug kuj yuav nug, vim li cas ROM yog tsis hloov pauv nco?

ROM uas yog nyeem xwb nco yog nonvolatile vim tias tag nrho cov ntaub ntawv hauv nws tsis tau tshem tawm tom qab kaw lub computer thiab rov pib dua. Qhov twg RAM uas yog random access nco yog tsis hloov pauv vim hais tias tag nrho cov ntaub ntawv nyob rau hauv nws tau erased tom qab kaw lub computer thiab restarting nws.

Ib tug kuj nug, yog ROM volatile cia? A ROM chips yog tsis volatile cia nruab nrab, uas txhais tau hais tias nws tsis tas yuav muaj lub zog los khaws cov ntaub ntawv khaws cia ntawm nws. Ntawm qhov sib txawv, RAMchip yog tsis hloov pauv , uas txhais tau tias nws poob tej ntaub ntawv uas nws tuav thaum lub hwj chim raug muab tua.

Qhov sib thooj, puas yog DRAM tsis hloov pauv lub cim xeeb?

Cov khoom siv tsis raug tuaj yeem raug sib tw thiab tshem tawm. Tsis yog - tsis hloov pauv random-nkag mus nco (NVRAM) israndom-access nco uas yog tsis yog - tsis hloov pauv . Qhov no yog qhov sib piv rau dynamic random-access nco ( DRAM ) thiab static random-access nco (SRAM), uas ob leeg tswj cov ntaub ntawv tsuas yog ntev npaum li lub zog siv.

Puas yog RAM lossis ROM hloov pauv?

RAM yog hom tsis hloov pauv nco. Thaum koj kaw koj lub computer cov ntaub ntawv khaws cia hauv RAM yog deleted. ROM yog hom uas tsis yog- tsis hloov pauv nco. Cov ntaub ntawv hauv ROM yog sau tas mus li thiab tsis tau muab tshem tawm thaum koj poweroff koj lub computer.

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