Definition

1. Noun:
   • A unit of information equal to 1024 bytes: A kibibyte is a specific, standardized unit of digital information or computer storage. It is part of the binary prefix system (kibi-, mebi-, gibi-) designed to precisely denote powers of two, distinguishing it from the decimal "kilobyte" which can ambiguously mean either 1000 or 1024 bytes.

Usage Examples

• Noun:
  • The file size is exactly 2 kibibytes.
  • One kibibyte is composed of 1024 bytes.
  • Memory is often measured in kibibytes, mebibytes, and gibibytes.

Advanced Usage

• Technical Specification: The term "kibibyte" (symbol: KiB) was formally established by the International Electrotechnical Commission (IEC) in 1998 to eliminate confusion in computing and digital storage fields.

  • For accurate technical documentation, specify storage capacity in kibibytes rather than kilobytes.

• Contextual Distinction: Used primarily in contexts requiring precise binary measurement, such as computer memory (RAM) capacity, chip design, and certain software applications.

  • The application reserves a 512 KiB buffer for processing.

Variants and Related Words

• Kibi-: The binary prefix meaning 2^10 (1024).
• Mebibyte (MiB): A unit equal to 1024 kibibytes (2^20 bytes).
• Gibibyte (GiB): A unit equal to 1024 mebibytes (2^30 bytes).
• Kilobyte (KB): A decimal unit that traditionally often meant 1024 bytes but is now standardized in some contexts as 1000 bytes, leading to the creation of "kibibyte" for clarity.

Synonyms

• KiB: The standard symbol for kibibyte.
• 1024 bytes: A descriptive synonym.
• Binary kilobyte: An informal term clarifying the 1024-byte meaning (though "kibibyte" is the preferred formal term).

Related Phrases

• Per kibibyte: Used to describe rates or densities.
  • The data cost is calculated per kibibyte transferred.

Notes

• The adoption of "kibibyte" addresses the historical ambiguity where "kilobyte" was used for both 1000 bytes (metric system) and 1024 bytes (binary system common in computing). In precise technical communication, "kibibyte" unambiguously means 1024 bytes.

Noun

1. a unit of information equal to 1024 bytes