Indlela ukuguqulela bytes zibe megabytes kunye umva?

Namhlanje ubomi bethu Kunzima ukuba nomfanekiso ngaphandle iikhompyutha. Igcwele yonke. Igama elithi "bit", "byte", "megabytes" ziye zibe yinxalenye yobomi bethu. abantu abaqhelekileyo badla ngaphandle bengazi ukuba yintoni sokubonisa indlela yokunxulumanisa omnye komnye.

Utsotsi, kilobits ...

Kukho bhalo endala. Yintoni umahluko phakathi komntu eqhelekileyo kunye specialist computer? Eyokuqala qiniseka ukuba ikhilobhayithi 1000 bytes, kwaye eyesibini - 1024 grams - in kilogram. Abantu abaqhelekileyo esoloko ezibuza, yaye yintoni, enyanisweni, a joke. Kulungile, siya ukuqonda avela kukhula iinyawo, uze ufumanise indlela yokuguqulela kolunye ulwimi bytes kwi megabytes okanye nezinye iiyunithi ezininzi.

Bit - iyunithi lincinci yolwazi yokubini. Okunye ngqo, umthamo wayo. Oku kubhekiselele kulwazi malunga enye amazwe amabini into. Ngokomzekelo, omnye umqondiso / akukho umqondiso, inyaniso / ubuxoki, 1/0, njalo njalo. G. Ukususela igama IsiNgesi Kuvela ukuncitshiswa bi usibonise digi t ( "yokubini") = bit. Yaye "bit" libhekisela nenombolo eyodwa ye-code yokubini. Kulo mzekelo, kukho inani lokugqibela uchazwa unothi okanye omnye, umzekelo njengoko kubonisiwe kule theyibhile. Le nto ibizwa ngokuba 'inkqubo kokubini lwe lingu. "

Njengoko sibonile, amanani 0 no 1 kufuneka kubekho umelo kunye deuce wokugqibela uye amasuntswana ezimbini - 10 Kwaye kwi ezisibhozo - ezine (1000).

Kwaye yintoni kilobits?

Ukusetyenziswa kunayo yonke le nkqubo nani ezifumaneka kubuchwepheshe computer. Ngokukodwa, amanani yokubini esetyenziswa inani iinkumbulo digital.

Nanku umzekelo. Inani zonke iidilesi kunokwenzeka kwi dilesi ibhasi silingana naliphi na inani ababini othile N. Okanye ngenye indlela - 2 ^N. Apha, N ibonisa inani ziikhowudi ibhasi. Yintoni esiyibonayo? Inani leseli chip kwimemori ilingana omnye okanye omnye iqondo 2 Ke ngoko - nokuba ezinomdla kakhulu. Inani 2 ¹⁰ = 1024 lisondele kakhulu 1000. Ngelo xesha, amawaka asetyenziswe njengesiseko izimaphambili lokugqibela. Ngoko ke, 1024 amasuntswana babizwa "kilobits". Ngu umzekeliso i gram Kilo okanye kilo imitha. Ndikhumbula bhalo, eboniswe ngasentla.

Bytes kunye utsotsi

Of computer isayensi eyaziwa ngolu hlobo lulandelayo. "Bytes" (eng. Byte) kuthiwa iyunithi yokugcina, kunye nokuqwalaselwa ulwazi yedijithali. Umele inani ziikhowudi ngaxeshanye ukuqhubekekiswa computer. Yinto classic.

iinkqubo zekhompyutha Modern sebenzisa byte eyenziwa ziikhowudi 8. Ngenxa yoko, ingathatha 256 (2 ⁸⁾ amaxabiso ezahlukeneyo.

Ukuguqula bytes ukuba megabytes, senze nje. Izibalo ngokuba iklasi lesithathu: 1 ikhilobhayithi = 1024 bytes. Khumbula malunga 2 ^10? A 1 MB = 1024 KB (m. E. 2 ²⁰ 2 = ^2x10) = 1,048,576 bytes.

izicelo

Amaninzi, le bytes kusetyenziswa kwiinkqubo zekhompyutha, kunye amasuntswana - in networks transmission data. Ngokuqhelekileyo, kuba umlinganiselo Velocity.

Nanku umzekelo. network Ethernet inikeza izinga data kwi uluhlu 10 Mbit / s 1 Gb / s. Kufanele kuqatshelwe ukuba, njengokuba umthetho, bytes zibonakaliswe yileta "B" (okanye «B» Latin). "Yesuntswana" zaza zarekhodwa. Isimaphambili "Kilo" eboniswe "K" ileta. It is a capital kunokuba abakhulu nabancinci. A "k" elincinane ebhalwe igama isimaphambili wokugqibela "Kilo", ie March ¹⁰ = 1000. Ngoku cinga ngokweenkcukacha lo mbuzo olandelayo.

izimaphambili Binary and wokugqibela

Indlela ukuguqulela bytes zibe megabytes, ngaphezulu okanye ngaphantsi ecacileyo. Ebutsheni bowe-1999, umbutho ezaziwayo-kakuhle IEC (Electrotechnical Commission) zifakwa ukujikeleza isimaphambili lokubini ukwakha iiyunithi ezininzi isixa iinkcukacha. Isizathu soku yaba amanani kufutshane 1024 nase-1000 Ngokufanayo, izimaphambili lokugqibela eqhelekileyo basebenzisa inkqubo SI, binary kwahluka kuphela ngokususa lwegama lokugqibela 'bi "(ukusuka binarius Latin - binary). Kubonakala njengoko kubonisiwe kule theyibhile ingezantsi.

Umgangatho eyamkelwe kumazwe amaninzi, kodwa amagama abafakiweyo ezisetyenziswa rhoqo, ingakumbi ngokubhala ngomlomo - phantse naphakade. Indlela yokufumana ngenxa kwaloo ntsholo. Mhlawumbi kunjalo. Uyavuma ukuba kilobits izandi wawumhle ngaphezu kibibit kwaye megabytes ngaphezu mebibytes.

Ukuguqulela bytes zibe megabytes ecacileyo. Kodwa loo nto bonke. Ukuza kuthi ga ngoku, kukho iindlela ezimbini ukuya ukuyilwa iziphindwa info. Ukuba mbuzo mandundu ngakumbi yindlela bangaphi abafundi 1 imegabhayithi lwe bytes.

Indlela yokuqala

.. Kulo isimaphambili "Kilo," "musa," njalo njalo zisetyenziswa njenge yokubini kwezi meko zilandelayo:

• Umphathi wefayile kunye nenye isoftwe ekutshoneni bobungakanani befayile olufinyeziweyo. Ngokomzekelo, ingxelo inkqubo ubukhulu kwirekhodi yi-10 MB. Indlela classic ukudlulisela bytes e megabytes, cinga ubukhulu leyo ilingana no 10485760 bytes. Abaphathi ifayile yamva uyahlangabezana dimensioning umgangatho - usebenzisa uhlobo olufinyeziweyo lwezimaphambili yokubini, ezifana MIB (MIB).
• Abavelisi imemori yofikelelo oluzenzekelayo, flash memory amakhadi, ividiyo memory.
• CD-ROM volume inikwa kuphela megabytes yokubini.

Indlela yesibini

Apha consoles zisetyenziswa njenge lokugqibela kwezi meko zilandelayo:

• hard nezibonwa. umthamo okhokelayo yabo megabytes lokugqibela. Imeko engalawulwa ngulo mthetho: CD, ogama amandla kubonisiwe yokubini.
• unxibelelwano sikweni. Kulo mzekelo, amaxabiso esinobubanzi elirhangqiweyo. Umzekelo, umthamo we-10 yezigidi bytes yefayile kuthiwe ukuba "inobunzima" megabytes-10. Yintoni esiyibonayo apha? Kulo mzekelo, le bytes kwi megabytes idluliselwe alichanekanga ngokupheleleyo, kodwa unxibelelwano olukhoyo.
• Kubekwa Isantya uqhagamshelo ngomnxeba. Umzekelo, thatha umgangatho 100BASE-TX. Kuyo 100 Mbit / s rate data ingqinelana twatse ne-100 lezigidi amasuntswana / s. Makhe sijonge yikhompawundi 'nimble "kunye 10 Gbit / s (standard 10GBASE-X) ngaphezulu. Siyafana kanye 10 billion amasuntswana / s. Yiloo nto. Yaye isuntswana ngaphezulu okanye ngaphantsi.

Kodwa nge intshi ezintathu-floppy disks 1,44 MB (khumbula ezo?) Ngaba nokuba ezinomdla kakhulu. umthamo wabo ziboniswe megabytes wokugqibela binary-code. Yayenzelwe ngolu hlobo lulandelayo. Omnye "megabytes" waba KB 1000, nto leyo nama-0,977 MIB, kodwa kwangaxeshanye 1 KB lilingana 1024 bytes.

Kufuneka kuqatshelwe ukuba kukho umahluko phakathi kwezi consoles ezimbini ongakhetha yokungeniswa. Ngoxa kwimeko kilobytes ingadluli 2.4%, ngoko ukuba imegabhayithi sele 4.9% ukuya GB - 7.4%, nangenxa ulinganiso lweenkcukacha ezinkulu - phantse-10%. Kakade ke, hayi ngokuthanda ukumelwa yokubini. E. "Steal" abenzi zethu bytes. Umzekelo, ukuthenga hard drive umthamo we-1 TB. Njengoko umntu oye wafunda inzululwazi ikhompyutha, ngokuhlonela bakholelwa ukuba kukho 1099511627776 bytes. Yaye kuvela - "kuphela" 1000000000000. Oko kukuthi, ukuba "alunywe off" ngaphezulu kwe 99,5 ezigidi bytes (malunga nama-98 GB). Kakhulu okanye kancinci? Lwaba - ku-40 200 ngokupheleleyo-ubude iifilim, kuxhomekeka format. Akukho nto ngaye ntoni? E., Njengokuba kubhaliwe ngasentla, eyeshumi.