The mebibit is a multiple of the bit, a unit of digital information storage, prefixed by the standards-based multiplier mebi (symbol Mi), a binary prefix meaning 220.[1][2] The unit symbol of the mebibit is Mibit or Mib.
- 1 mebibit = 220 bits = 1048576bits = 1024 kibibits[3]
This unit is most useful for measuring RAM and ROM chip capacity.
The mebibit is closely related to the megabit which equals 106 bits = 1,000,000 bits, but is sometimes used to denote the mebibit value in traditional computer technology writing.[citation needed] Throughout the 1980s and 1990s, video game manufacturers would sometimes report the amount of internal cartridge ROM (in megabits) on their packaging. 1 megabit equaled 128 kibibyte; 8 megabits were 1 mebibyte of ROM containing game instructions and data.
The binary prefixes are not part of the International System of Units (SI).
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