Npaum li cas KBs rau hauv ib qho MB lossis GB? Tshawb xyuas seb koj lub computer muaj pes tsawg.
Yog tias koj xav tsis meej txog qhov cim xeeb thiab qhov chaw cia koj lub computer muaj, thiab koj nyob ntawm KBs, MBs, thiab GBs, nws tsis yog xav tsis thoob. Muaj ntau ntau ntawm cov cim hauv kev xam khib nyiab, thiab qee zaus cov neeg hauv qab muaj kev sib raug zoo nrog lawv.
Nws muaj ob txoj kev qhia txog qhov chaw cia thiab cim xeeb ntawm koj lub computer. Qhov no yog kev piav qhia yooj yim ntawm qhov tshwm sim, tab sis yog tias koj tsis xav kom cov lej tom qab lo lus teb, koj tuaj yeem hla ncaj mus rau qhov kawg.
Nkag siab Binary vs. Decimal Numbers
Ua ntej, ib zaj lus qhia me ntsis. Peb ua peb txoj kev ua lej ib hnub zuj zus rau hauv kev ua zauv. Cov kab zauv muaj kaum tus lej (0-9) uas peb siv los qhia tag nrho peb cov zauv. Cov computers, rau tag nrho lawv cov tsis pom kev nyuaj, yog qhov kawg ntawm ob leeg ntawm cov lej, cov 0 thiab tus 1 uas sawv cev ntawm "hauv" lossis "tawm" ntawm cov khoom hluav taws xob.
Qhov no yog hu ua binary system, thiab cov hlua ntawm zeros thiab cov sawv cev yog siv los qhia cov zauv. Piv txwv, kom tau cov zauv zauv 4 hauv binary koj yuav suav zoo li qhov no: 00,01,10,11. Yog tias koj xav mus siab tshaj qhov ntawd, koj yuav tsum muaj ntau tus lej.
Dab tsi yog Khoom thiab Bytes?
Ib qho me me yog qhov qis tshaj plaws ntawm kev cia rau hauv computer. Xav txog txhua yam zoo li lub teeb pom kev zoo. Txhua tus yog nyob rau lossis tawm, yog li nws yuav muaj ib qho ntawm ob qhov tseem ceeb (xws li 0 lossis 1).
Ib qho byte yog ib txoj hlua ntawm yim khoom (yim lub teeb qhov muag teev nyob rau hauv kab). Ib tug byte yog qhov tseem ceeb tshaj plaws ntawm cov ntaub ntawv uas muaj peev xwm ua tiav ntawm koj tsev neeg lub computer. Xws li, qhov chaw cia ib txwm ntsuas hauv bytes es tsis khoom. Cov zauv loj tshaj plaws uas muaj peev xwm sawv cev tau los ntawm ib tug byte yog 2 8 (2 x 2 x 2 x 2 x 2 x 2 x 2 x 2) los yog 256.
Yog xav paub ntxiv txog cov naj npawb binary, suav nrog kev hloov li cas rau cov zauv, thov mus saib ntawm thaj chaw hauv qab no.
Ib kilobyte (KB) hauv binary yog 1024 bytes (2 10 ). Lub "kilo" prefix txhais tau hais tias ib txhiab; txawm li ntawd los, hauv binary kilobyte (1024) me ntsis loj dua cov zauv txhais (1,000). Qhov no yog qhov pib khoom pib kom ruam!
Ib tug megabyte hauv binary yog 1,048,576 (2 20 ) bytes. Hauv decimal nws yog 1,000,000 bytes (10 6 ).
Ib tug gigabyte yog li 2 30 (1,073,741,824) bytes lossis 10 9 (1 billion) bytes. Txij ntawm no mus, qhov txawv ntawm binary version thiab cov zauv version ua heev tseem ceeb.
Li Cas Kuv Muaj Ntau Yam Nco / Cia Li Cas?
Qhov loj tshaj plaws uas tib neeg tau nkag siab yog tias qee zaus cov tuam txhab muab cov ntaub ntawv hauv cov zauv thiab qee zaus lawv muab rau hauv binary.
Cov tsav nyuaj, cov cim drives, thiab lwm yam khoom siv cia feem ntau tau muab piav qhia rau hauv zauv rau simplicity (tshwj xeeb tshaj yog thaum ua lag luam rau tus neeg tau txais kev pab). Nco (xws li RAM) thiab software feem ntau muab binary qhov tseem ceeb.
Vim 1GB binary yog loj dua 1GB nyob rau hauv zauv, tus so ntawm peb feem ntau tsis meej pem txog qhov chaw seem peb nyob nraum tau txais / siv. Thiab tuaj, koj lub computer yuav hais tias nws muaj 80GB nyuaj tsav, tab sis koj operating system (uas ceeb toom hauv binary!) Yuav qhia rau koj tias nws yeej tsis tsawg (li ntawm 7-8 GB).
Qhov yoojyim daws teebmeem rau qhov teebmeem no tsuas yog tsis lees paub nws ntau li ntau tau. Thaum koj yuav ib yam khoom cia, nco ntsoov tias koj nyob nraum tau tsawg dua li koj xav thiab npaj kom haum. Yeej, yog tias koj muaj 100 GB hauv cov ntaub ntawv khaws los yog software rau nruab, koj yuav tsum tau tsav tsheb nrog tsawg 110 GB ntawm qhov chaw.