Hauv chav kawm thev naus laus zis, kev pom, cov ntawv nyeem, cov duab thiab lwm yam ntaub ntawv raug nthuav tawm hauv binary code. Nws yog "lus tshuab" - ib ntu ntawm xoom thiab sawv daws. Cov ntaub ntawv ntim tso cai rau koj los sib piv cov nqi ntawm cov ntaub ntawv binary uas muaj nyob hauv xov xwm sib txawv. Piv txwv li, xav txog yuav ua li cas tagnrho cov ntawv nyeem thiab cov duab raug txiav txim siab li cas.
Cov Lus Qhia
Kauj ruam 1
Txhawm rau xam cov ntaub ntawv ntim ntawm cov ntawv sau uas ua rau phau ntawv, txiav txim siab thawj cov ntaub ntawv. Koj yuav tsum paub cov naj npawb ntawm nplooj ntawv hauv phau ntawv, nruab nrab tus naj npawb ntawm kab ntawm kab lus ntawm txhua nplooj ntawv, thiab tus naj npawb ntawm cov cim nrog qhov chaw hauv txhua kab ntawv ntawm kab ntawv. Cia phau ntawv muaj 150 nplooj, 40 kab ib nplooj ntawv, 60 tus cim rau ib kab.
Kauj ruam 2
Nrhiav tus naj npawb ntawm cov cim hauv phau ntawv: muab cov ntaub ntawv los ntawm thawj kauj ruam. 150 nplooj * 40 kab * 60 tus cim = 360 txhiab tus cim hauv phau ntawv.
Kauj ruam 3
Kev txiav txim siab cov xov xwm ntim ntawm phau ntawv nyob ntawm qhov tseeb tias ib lub cim hnyav ib byte. 360 txhiab tus cim * 1 byte = 360 txhiab bytes.
Kauj ruam 4
Hloov mus rau qhov loj dua: 1 KB (kilobytes) = 1024 bytes, 1 MB (megabytes) = 1024 KB. Tom qab ntawd 360 txhiab bytes / 1024 = 351.56 KB lossis 351.56 KB / 1024 = 0.34 MB.
Kauj ruam 5
Txhawm rau nrhiav cov ntaub ntawv ntim ntawm cov duab cov ntaub ntawv, tseem txhais cov ntaub ntawv thawj zaug. Tso duab 10x10 cm ua kom tau txais nrog lub scanner. Koj yuav tsum paub txog kev daws teeb meem ntawm lub cuab yeej - piv txwv li 600 dpi - thiab xim xim tob. Tus nqi kawg, kuj piv txwv, koj tuaj yeem nqa 32 me me.
Kauj Ruam 6
Qhia txog kev daws teeb meem ntawm lub scanner hauv dots ib cm. 600 dpi = 600 dpi. 1 nti = 2.54 cm. Tom qab ntawd 600 / 2.54 = 236 dots rau ib cm.
Kauj Ruam 7
Nrhiav qhov loj me ntawm cov duab hauv cov ntsiab lus. 10 cm = 10 * 236 dots ib cm = 2360 dots. Tom qab ntawd qhov loj ntawm daim duab = 10x10 cm = 2360x2360 dots.
Kauj ruam 8
Laij tag nrho cov naj npawb ntawm cov ntsiab lus uas tsim tau ntawm daim duab. 2360 * 2360 = 5569600 tej daim.
Kauj Ruam 9
Xam cov ntaub ntawv ntim ntawm cov txiaj ntsig cov duab ua. Ua li no, khij rau qhov tob xim los ntawm qhov tshwm sim los ntawm qib yim. 32 qhov * 5569600 daim = 178227200 khoom.
Kauj ruam 10
Txav mus rau cov koog loj: 1 byte = 8 khoom, 1 KB (kilobyte) = 1024 bytes, thiab lwm yam. 178227200 qhov / 8 = 22278400 bytes, los yog 22278400 bytes / 1024 = 21756 KB, lossis 21756 KB / 1024 = 21 MB. Kev muab kwv yees tawm ntawm cov txiaj ntsig kev kwv yees.
