Различия десятичных и двоичных единиц измерения данных

Уровень 0 · материалов: 4

В кластер входят документы, посвященные техническому разграничению десятичных и двоичных единиц измерения цифровой информации и соответствующим стандартам наименования.

Общие признаки: десятичные и двоичные префиксы, стандарты SI и IEC, разница между МБ и МиБ, ошибки измерения объема данных

Группа выше: Целостность, валидация и анализ данных

Материалы

• #20093 — Understanding Binary Prefixes and IEC60027-2 Standards — Представитель этого кластера

  IEC60027-2: Давайте использовать стандарты, или 1024 B == 1 KiB && 1024 B != 1 KB && 1000 B == 1 kB — optimister

  Смысл: The text argues for the adoption of the IEC60027-2 standard to eliminate confusion between decimal (SI) and binary data measurements. It explains that using 'kB' for 1024 bytes is technically incorrect and advocates for the use of 'KiB' (kibibyte) to ensure precision in the IT industry.

  The text advocates for using binary prefixes (KiB, MiB) instead of SI prefixes (kB, MB) to accurately represent data sizes based on powers of 1024.

• #12749 — The Binary vs. Decimal Byte Conflict

  Главный эффект Манделы в мире программистов — сколько байт в мегабайте — Niketas

  Смысл: The main idea is that there is a formal distinction between decimal units (MB, GB) and binary units (MiB, GiB), and the common belief that a megabyte is 1024*1024 bytes is technically incorrect according to SI and IEC standards.

  A megabyte is officially one million bytes (SI), while 1,048,576 bytes is actually a mebibyte (IEC), leading to perpetual confusion in hardware labeling and software reporting.

• #11277 — Confusion in Information Measurement Units

  KiB, Kib, KB, Kb — evocatus

  Смысл: The main idea is that the current lack of unified, internationally aligned standards for measuring digital information (specifically in Russia) creates technical confusion and potential for error, and that adopting global binary prefix standards (KiB, MiB) is the only logical solution.

  The author analyzes the conflicting international and Russian standards for binary and decimal data units, urging the adoption of global IEC standards to end measurement confusion.

• #8085 — Understanding SD Card Speed Class Measurement

  Определение класса скорости SD карты — LuckyStarr

  Смысл: The main idea is that the perceived failure of SD cards to meet their rated Speed Class is often due to the difference between decimal megabytes (1000^2) used by the SD Association and binary mebibytes (1024^2) used by testing software.

  SD card speed tests may seem low because software uses binary MB (1024^2) while standards use decimal MB (1000^2), requiring a ~5% adjustment for accuracy.