megabyte


megabyte
(MB)
   this unit of information is very common in the computer world, but it is poorly defined. Often it means 1 000 000 bytes, but sometimes it means 220 = 1 048 576 bytes. As if that weren't confusing enough, the 1.44 megabytes stored on "high density" floppy disks are actually megabytes of 1 024 000 bytes each. This uncertainty is a major reason for the recent decision of the International Electrotechnical Commission to establish new binary prefixes for computer science.

Dictionary of units of measurement. 2015.

Look at other dictionaries:

  • megabyte — meg‧a‧byte [ˈmegəbaɪt] written abbreviation MB noun [countable] COMPUTING a million byte S (= units of computer information, each holding one number or letter), used to talk about the amount of processing space on a computer: • a …   Financial and business terms

  • megabyte — (n.) 1972, from MEGA (Cf. mega ) + BYTE (Cf. byte). The Sussex team has run the Forrester/Meadows models more than 1000 times on the UK s most powerful computer (the giant two megabyte IBM 370/165 at Harwell). [ New Scientist, May 4, 1972] …   Etymology dictionary

  • megabyte — |mègabaite| s. m. [Informática] Unidade de medida de informação, equivalente a 1024 quilobytes (símbolo: MB).   ‣ Etimologia: palavra inglesa …   Dicionário da Língua Portuguesa

  • megabyte — ► NOUN Computing ▪ a unit of information equal to one million or (strictly) 1,048,576 bytes …   English terms dictionary

  • megabyte — [meg′əbīt΄] n. [ MEGA + BYTE] 1. a unit of storage capacity in a computer system, equal to 1,048,576 (220) bytes 2. loosely one million bytes: Abbrev. MB or mb …   English World dictionary

  • Megabyte — This article is about the unit of data. For the ReBoot character, see Megabyte (ReBoot). The megabyte is a multiple of the unit byte for digital information storage or transmission with two different values depending on context: 1048576 bytes… …   Wikipedia

  • Megabyte — Unidades básicas de información (en bytes) Prefijos del Sistema Internacional Prefijo binario Múltiplo (Símbolo) Estándar SI Binario Múltiplo (Símbolo) Valor kilobyte (kB) 103 210 …   Wikipedia Español

  • Megabyte — Einheit Norm IEC 60027 2 Einheitenname Byte, Oktett Einheitenzeichen B Beschriebene Größe(n) Daten In SI Einheiten …   Deutsch Wikipedia

  • Megabyte — ► sustantivo masculino INFORMÁTICA Unidad de medida de una memoria, un disco o un fichero que equivale a 1024 kilobytes. * * * megabyte (ingl.; pronunc. [megabáit]) m. Inform. Unidad que equivale aproximadamente a un millón de bytes. Abrev.: «Mb» …   Enciclopedia Universal

  • Megabyte — Me|ga|byte [ me:gabai̮t], das; [s], [s]: aus 1 048 576 Byte bestehende Einheit, die die Größe eines Speichers im Computer kennzeichnet: ein Computer mit 4 000 Megabyte Arbeitsspeicher. * * * Me|ga|byte 〈[ baıt] n.; od. s, od. s; 〉 1 048 576 Byte… …   Universal-Lexikon

  • megabyte — UK [ˈmeɡəˌbaɪt] / US noun [countable] Word forms megabyte : singular megabyte plural megabytes computing a unit for measuring the size of a computer s memory, equal to just over one million bytes. This is usually written Mb …   English dictionary


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