# megabyte

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## meg·a·byte

(mĕg′ə-bīt′)
n. Abbr. MB
1. A unit of computer memory or data storage capacity equal to 1,048,576 (220) bytes.
2. One million bytes. See Usage Note at gigabyte.

## megabyte

(ˈmɛɡəˌbaɪt)
n
(Units) computing 220 or 1 048 576 bytes. Abbreviation: MB or mbyte See also mega-2
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## meg•a•byte

(ˈmɛg əˌbaɪt)

n. Computers.
1. 220 (1,048,576) bytes; 1024 kilobytes.
2. 106, or one million (1,000,000), bytes; 1000 kilobytes. Abbr.: MB
[1965–70]

## meg·a·byte

(mĕg′ə-bīt′)
1. A unit of computer memory or data storage capacity equal to 1,024 kilobytes (220 bytes).
2. One million bytes.
Usage Usually the prefix kilo- means "one thousand," and the prefix mega- means "one million." But in the calculation of data storage these prefixes have a different meaning. Data storage capacity (measured in bytes) is based on powers of 2 because of the binary nature of bits (1 byte is 8, or 23, bits). Here, the prefix mega- refers to the power of 2 closest to 1,000,000, which is 220, or 1,048,576. Thus, a megabyte is 1,048,576 bytes, although it is also used less technically to refer to a million bytes. Similarly, the prefix kilo- refers either to 1,000 or to 210 (1,024). Measuring the transmission of data is somewhat different from measuring its storage. Since a bit of transmitted data is considered as one signal pulse rather than an either/or unit, it is natural to count transmitted bits using ordinary numbers instead of the binary system. Thus a megabyte of transmitted data usually refers to a million (not 1,048,576) bits. Other prefixes for greater amounts, such as giga- and tera-, follow similar rules for data storage and transmission.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 megabyte - a unit of information equal to 1000 kilobytes or 10^6 (1,000,000) bytesMB, Mcomputer memory unit - a unit for measuring computer memorykilobyte, kB, K - a unit of information equal to 1000 bytesgigabyte, GB, G - a unit of information equal to 1000 megabytes or 10^9 (1,000,000,000) bytes 2 megabyte - a unit of information equal to 1024 kibibytes or 2^20 (1,048,576) bytescomputer memory unit - a unit for measuring computer memoryKiB, kibibyte, kilobyte, kB, K - a unit of information equal to 1024 bytesGiB, gibibyte, gigabyte, GB, G - a unit of information equal to 1024 mebibytes or 2^30 (1,073,741,824) bytes
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
megabyte

## megabyte

[ˈmegəˌbaɪt] N (Comput) → megabyte m, mega m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

## megabyte

[ˈmɛgəbaɪt] n
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

## megabyte

n (Comput) → Megabyte nt; a 40-megabyte memoryein 40-Megabyte-Speicher m
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

## megabyte

[ˈmɛgəˌbaɪt] nmegabyte m inv
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in periodicals archive ?
For rate of transfer, the units mega-byte per second (MB/s) or giga-byte per second (GB/s) should be used.
From low-cost to high-res, some of the tech world's biggest names - including Sony, Samsung and Microsoft - will be showing off their latest wares at an event eagerly awaited by anyone who knows a mega-pixel from a mega-byte.
a) Mega-Byte b) Mega-Brain c) Mega-Brilliant By Telephone: Call 0901 154 2625 and follow the instructions By Text: Text BM8 followed by a space and your answer, your name, address and postcode to 84080 (eg: BM8, A, John Smith, 123 Sample Street, B1 1FP) By Email: Email your entry to bmentry@mrn.

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