Rather than using the prefix "mega," within this system of prefixes, 1024 2 is referred to as a mebibyte.Ĭurrent use: Megabytes are widely used in data storage for file sizes (documents, photos, videos, etc.) as well as for storage devices such as flash drives or, in the past, floppy disks. In 1998, the International Electrotechnical Commission attempted to address this by defining new prefixes to indicate a base of 1024 rather than 1000. The prefix "mega" can be ambiguous the SI use of "mega" would indicate that a megabyte is 1,000,000 bytes, or 1000 2 bytes, but a base of 1024 (rather than 1000) is also used in information technology as a convenient way to express byte multiples as powers of 2. History/origin: The megabyte is based on the byte, which is derived from the bit, and is a unit that makes use of SI (International System of Units) prefixes. Megabyteĭefinition: A megabyte (symbol: MB) is equal to 10 6 bytes (1000 2 bytes), where a byte is a unit of digital information that consists of eight bits (binary digits). all store or contain storage space referenced in byte multiples such as kilobytes, megabytes, or gigabytes.
Computer files, hard disks, Blu-ray discs, video games, etc. Despite this effort, the gigabyte is still often used to signify either of these definitions.Ĭurrent use: The unit of bytes and all its multiples are used worldwide for data storage.
Prefixes to denote the byte being based on 1024 rather than 1000 were also created, with gibibyte referencing 1024 3 bytes.
Because this can be the source of confusion, in 1998, the International Electrotechnical Commission published standards that required the gigabyte strictly denote 1000 3 bytes.
There is also however, a binary definition where a gigabyte is 1024 3 bytes. The gigabyte is most commonly understood in terms of its decimal definition of 1000 3 bytes. History/origin: The gigabyte is based on the byte, which is derived from the bit, and is a unit that makes use of SI (International System of Units) prefixes. Definition: A gigabyte (symbol: GB) is equal to 10 9 bytes (1000 3 bytes), where a byte is a unit of digital information that consists of eight bits (binary digits).
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