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

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:
Noun1.megabyte - a unit of information equal to 1000 kilobytes or 10^6 (1,000,000) bytes
MB, M
computer memory unit - a unit for measuring computer memory
kilobyte, kB, K - a unit of information equal to 1000 bytes
gigabyte, 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) bytesmegabyte - a unit of information equal to 1024 kibibytes or 2^20 (1,048,576) bytes
computer memory unit - a unit for measuring computer memory
KiB, kibibyte, kilobyte, kB, K - a unit of information equal to 1024 bytes
GiB, gibibyte, gigabyte, GB, G - a unit of information equal to 1024 mebibytes or 2^30 (1,073,741,824) bytes
Translations
megabyte

megabyte

[ˈmegəˌbaɪt] N (Comput) → megabyte m, mega m

megabyte

[ˈmɛgəbaɪt] nméga-octet m, mégaoctet m

megabyte

n (Comput) → Megabyte nt; a 40-megabyte memoryein 40-Megabyte-Speicher m

megabyte

[ˈmɛgəˌbaɪt] nmegabyte m inv
References in periodicals archive ?
Therefore, it wants to expand its coverage in the continent with the investment 250 million dollars in the construction of a power plant of 22 Mega Byte in Equatorial Guinea.
But when time came for her to mail the 5 mega byte (MB) document, things did not work.
Conducting the required (a) extension of fiber optic cables to assure high speed Internet access, (b) Broad band Internet Services (50 Mega byte), also (c) connection of all school's buildings with fiber optic cables in three lots.
Now with this solution enterprises can instantly transform their corporate infrastructure into a secure cloud-like file synchronization platform at a minimal cost," said a Mega Byte spokesperson.