Ib qhov sib luag me ntsis, lossis kos me ntsis, yog ntxiv me ntsis ntxiv rau txoj hlua ntawm binary code. Parity bits yog ib qho yooj yim daim ntawv ntawm kev ua yuam kev nrhiav cov cai. Parity khoom feem ntau yog siv rau qhov tsawg tshaj plaws ntawm kev sib txuas lus raws tu qauv, feem ntau 8-ntsis octets, txawm hais tias lawv tuaj yeem siv cais rau tag nrho cov kab lus ntawm cov khoom.
Dab tsi yog qhov sib piv me ntsis nrog piv txwv?
Ib qhov sib npaug me ntsis, tseem hu ua daim tshev me ntsis, yog ib qho me me uas tuaj yeem ntxiv rau txoj hlua binary. … Piv txwv li, txhawm rau txheeb xyuas qhov sib luag binary nrog qhov sib luag, tag nrho cov tuaj yeem suav tau. Yog tias tus naj npawb ntawm tsis yog, qhov yuam kev yuav tshwm sim.
Lub hom phiaj ntawm kev siv cov khoom sib npaug yog dab tsi?
Ib qhov sib npaug yog ib qho kos me ntsis, uas tau ntxiv rau hauv cov ntaub ntawv thaiv rau kev tshawb pom qhov yuam kev. Nws yog siv txhawm rau txheeb xyuas qhov tseeb ntawm cov ntaub ntawv. Tus nqi ntawm qhov sib npaug me ntsis yog muab rau 0 lossis 1 uas ua rau tus lej ntawm 1s hauv cov lus thaiv txawm los yog khib nyob ntawm hom parity.
Dab tsi yog qhov sib luag me ntsis thiab nws suav li cas?
Tus nqi ntawm qhov sib npaug me ntsis yog xam los ntawm kev ua qhov kev sib tham tshwj xeeb LOSSIS (XOR) uas sib xyaw tag nrho cov khoom hauv byte. … Txawm tias parity qhov twg 1-parity-ntsis raug xa mus yog tias muaj tus lej ntawm 1-ntsis. Odd parity uas yog qhov opposite (piv txwv li ib tug 1-parity-ntsis yog xa thaum muaj ib qho khib ntawm 1-ntsis).
Yuav ua li cas sib npaug me ntsis?
Txawm tias kev sib haum xeeb hais txoga parity checking mode in asynchronous communication systems nyob rau hauv uas ib qho ntxiv me ntsis, hu ua parity me ntsis, yog teem rau xoom yog tias muaj tus lej ntawm ib qho ntawm cov ntaub ntawv ib-byte.
