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Randomly addressable semiconductor memory doubles in size for each address lane added to an integrated circuit package, which favors counts that are powers of two. The capacity of a disk drive is the product of the sector size, number of sectors per track, number of tracks per side, and the number of
473:(2 B), a quantity that conveniently expresses the binary architecture of digital computer memory. Standards bodies have deprecated this binary usage of the mega- prefix in favor of a new set of
460:
In the computer and information technology fields, other definitions have been used that arose for historical reasons of convenience. A common usage has been to designate one megabyte as
902:
489:
The unit megabyte is commonly used for 1000 (one million) bytes or 1024 bytes. The interpretation of using base 1024 originated as technical jargon for the byte
641:. In this convention, one thousand and twenty-four megabytes (1024 MB) is equal to one gigabyte (1 GB), where 1 GB is 1024 bytes (i.e., 1
493:
that needed to be expressed by the powers of 2 but lacked a convenient name. As 1024 (2) approximates 1000 (10), roughly corresponding to the SI prefix
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In this convention, one thousand megabytes (1000 MB) is equal to one gigabyte (1 GB), where 1 GB is one billion bytes.
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453:(SI). Therefore, one megabyte is one million bytes of information. This definition has been incorporated into the
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bytes (= 1000×1024 B) is the definition used to describe the formatted capacity of the 1.44 MB
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disk platters in the drive. Changes in any of these factors would not usually double the size.
593:
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a typical
English book volume in plain text format (500 pages × 2000 characters per page).
8:
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MB of data. The parts that differentiate one person from another can be compressed to 4
796:
531:. Nevertheless, the term megabyte continues to be widely used with different meanings.
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1004:
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to denote 1024 bytes. By the end of 2009, the IEC Standard had been adopted by the
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This article is about the decimal unit of data. For binary unit of 1024 bytes, see
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can store 1,474,560 bytes of data. MB in this context means 1,000×1,024 bytes.
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905:"Note: 1 megabyte (MB) = 1 million bytes; 1 gigabyte (GB) = 1 billion bytes."
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10.6 file manager is a notable example of this usage in software. Since
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637:(RAM). This definition is synonymous with the unambiguous binary unit
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bytes (= 1000 B = 10 B) is the definition following the rules of the
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1033:(established definition in Networking and Storage industries; from
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Tracing the
History of the Computer - History of the Floppy Disk
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Historical Notes About The Cost Of Hard Drive
Storage Space
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bytes (= 1024 B = 2 B) is the definition used by
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43:"MByte" redirects here. For the battery electric car from
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for digital information. Its recommended unit symbol is
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886:"Definitions of the SI units: The binary prefixes"
794:as an uncompressed plain text file, is 0.429 MB.
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980:
981:Christley, S.; Lu, Y.; Li, C.; Xie, X. (2008).
890:National Institute of Standards and Technology
477:, by means of which the quantity 2 B is named
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1046:IEC prefixes and symbols for binary multiples
75:
596:, file sizes are reported in decimal units.
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857:Bureau international des poids et mesures
554:International Electrotechnical Commission
499:International Electrotechnical Commission
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14:
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880:
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916:"How Mac OS X reports drive capacity"
735:) with 256 colors (8 bits/pixel
709:Depending on compression methods and
983:"Human genomes as email attachments"
875:
845:
671:, which actually has a capacity of
24:
833:Gigabyte § Consumer confusion
692:
556:(IEC). This definition is used in
455:International System of Quantities
25:
1223:
1019:
964:Melville, Herman (July 1, 2001).
947:Dickens, Charles (July 1, 1998).
739:) stored without any compression.
810:consists of DNA representing 800
970:– via Project Gutenberg.
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501:(IEC) published standards for
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1:
1000:10.1093/bioinformatics/btn582
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550:International System of Units
451:International System of Units
7:
828:Timeline of binary prefixes
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416:Orders of magnitude of data
10:
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1096:Platform-independent units
783:The Picture of Dorian Gray
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509:to denote 1000 bytes, and
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38:Megabyte (disambiguation)
29:Multiple of the unit byte
1122:Platform-dependent units
967:Moby Dick; Or, The Whale
54:Not to be confused with
918:. Apple Inc. 2009-08-27
903:SanDisk USB Flash Drive
586:measures of performance
706:
580:in computing, such as
36:. For other uses, see
700:
505:requiring the use of
1212:Units of information
1089:Units of information
733:1152 × 864
635:random-access memory
572:-based storage, and
558:computer networking
439:is a multiplier of
435:. The unit prefix
91:Multiple-byte units
1051:2004-06-15 at the
950:Great Expectations
806:is 1.192 MB. The
797:Great Expectations
715:a megabyte of data
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560:contexts and most
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1174:Metric byte units
800:is 0.994 MB, and
792:Project Gutenberg
627:Microsoft Windows
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16:(Redirected from
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1153:Metric bit units
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1031:the megabyte
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959:
949:
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920:. Retrieved
910:
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865:. Retrieved
861:the original
856:
847:
808:human genome
801:
795:
790:, hosted on
781:
779:
751:uncompressed
714:
708:
703:floppy disks
687:
599:
594:Snow Leopard
510:
506:
488:
459:
449:(10) in the
436:
432:
424:
422:
138:
49:Byton M-Byte
44:
26:
788:Oscar Wilde
746:seconds of
737:color depth
711:file format
669:floppy disk
566:hard drives
485:Definitions
230:quettabyte
1035:whatis.com
922:2009-10-16
839:References
780:The novel
633:, such as
219:ronnabyte
208:yottabyte
197:zettabyte
803:Moby Dick
753:CD audio.
726:megapixel
578:SI prefix
491:multiples
381:yobibyte
367:zebibyte
353:exbibyte
339:pebibyte
328:terabyte
322:tebibyte
311:gigabyte
305:gibibyte
294:megabyte
288:mebibyte
277:kilobyte
271:kibibyte
175:petabyte
164:terabyte
18:Megabytes
1206:Category
1191:gigabyte
1186:megabyte
1181:kilobyte
1139:syllable
1049:Archived
1009:18996942
822:See also
701:1.44 MB
665:3.5-inch
639:mebibyte
610:Mebibyte
590:Mac OS X
512:mebibyte
507:megabyte
479:mebibyte
425:megabyte
406:–
403:–
395:–
392:–
384:–
370:–
356:–
342:–
186:exabyte
152:gigabyte
139:megabyte
126:kilobyte
34:mebibyte
1165:megabit
1160:kilobit
867:June 1,
653:1 MB =
615:1 MB =
538:1 MB =
535:Base 10
103:Decimal
56:megabit
1129:nibble
1108:hextet
1007:
816:
812:
773:audio.
765:kbit/s
762:
758:
744:
729:bitmap
723:
604:Base 2
588:. The
258:Memory
248:Value
242:Binary
113:Metric
109:Value
47:, see
1113:octet
786:, by
681:bytes
650:Mixed
570:flash
495:kilo-
470:bytes
400:1024
389:1024
375:1024
361:1024
347:1024
333:1024
316:1024
299:1024
282:1024
265:1024
224:1000
213:1000
202:1000
191:1000
180:1000
169:1000
158:1000
145:1000
132:1000
119:1000
45:Byton
1144:word
1134:byte
1005:PMID
869:2007
818:MB.
574:DVDs
529:NIST
527:and
517:IEEE
437:mega
429:byte
423:The
1103:bit
995:doi
768:MP3
721:a 1
678:560
675:474
667:HD
660:000
657:024
643:GiB
622:576
619:048
584:or
545:000
542:000
525:ISO
467:576
464:048
446:000
443:000
378:YiB
364:ZiB
350:EiB
336:PiB
319:TiB
302:GiB
285:MiB
268:KiB
252:IEC
1208::
1003:.
991:25
989:.
985:.
888:.
877:^
855:.
713:,
645:).
568:,
523:,
521:EU
519:,
457:.
433:MB
325:TB
308:GB
291:MB
274:KB
227:QB
216:RB
205:YB
194:ZB
183:EB
172:PB
161:TB
148:GB
135:MB
122:kB
1081:e
1074:t
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1011:.
997::
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684:.
673:1
655:1
617:1
540:1
462:1
441:1
83:e
76:t
69:v
58:.
51:.
40:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.