mebibyte
Học thuậtThân thiện
Definition
- Noun:
- A unit of digital information: A mebibyte is a specific unit of measurement for computer memory or data storage. It is defined as exactly 1,048,576 bytes, which is equal to 1024 kibibytes or 2 to the power of 20 (2^20) bytes.
Usage
- The term "mebibyte" is used in computing and digital technology to precisely quantify data capacity or file size, distinguishing it from the decimal-based megabyte.
- It is commonly abbreviated as MiB.
Examples
- Noun:
- The software update requires 250 mebibytes of free disk space.
- One mebibyte is equivalent to 1,048,576 bytes.
- The file is 55 MiB in size.
Advanced Usage
- Binary vs. Decimal Prefixes: "Mebibyte" is part of the binary prefix system (kibibyte, mebibyte, gibibyte) standardized by the International Electrotechnical Commission (IEC). It was created to avoid confusion with the SI (metric) prefix "mega-," where a megabyte (MB) has historically been used to mean either 1,000,000 bytes or 1,048,576 bytes. The mebibyte unambiguously denotes 1,048,576 bytes.
Variants and Related Words
- Mebibit (Mibit): A related unit of digital information, equal to 1,048,576 bits or 1024 kibibits.
- Kibibyte (KiB): A unit equal to 1024 bytes, which is 1/1024 of a mebibyte.
- Gibibyte (GiB): A unit equal to 1024 mebibytes.
Synonyms
- MiB: The standard abbreviation for mebibyte.
- (Note: "Megabyte" is not a perfect synonym, as it can represent a different quantity.)
Related Phrases and Contexts
- Storage Capacity: Often used when describing the capacity of RAM, flash memory, and other digital storage media.
- This USB drive has a capacity of 64 gibibytes, which is 65,536 mebibytes.
- Data Transfer: Can be used to quantify amounts of data transferred, though bits per second are more common for rates.
- The download was several hundred mebibytes.
Noun
- a unit of information equal to 1024 kibibytes or 2^20 (1,048,576) bytes