Mebibit

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Multiples of bits
Decimal
Value Metric
1000 kbit kilobit
10002 Mbit megabit
10003 Gbit gigabit
10004 Tbit terabit
10005 Pbit petabit
10006 Ebit exabit
10007 Zbit zettabit
10008 Ybit yottabit
Binary
Value JEDEC IEC
1024 Kbit kilobit Kibit kibibit
10242 Mbit megabit Mibit mebibit
10243 Gbit gigabit Gibit gibibit
10244 - - Tibit tebibit
10245 - - Pibit pebibit
10246 - - Eibit exbibit
10247 - - Zibit zebibit
10248 - - Yibit yobibit

The mebibit is a multiple of the bit, a unit of information, prefixed by the standards-based multiplier mebi (symbol Mi), a binary prefix meaning 220.[1][2] The unit symbol of the mebibit is Mibit.

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.

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).

See also[edit]

References[edit]

  1. ^ International Electrotechnical Commission, IEC 60027-2 (2000-11) Ed. 2.0
  2. ^ A.J. Thor (2000). "Prefixes for binary multiples" (PDF). Metrologica 37 (81): 81. doi:10.1088/0026-1394/37/1/12. 
  3. ^ Definitions of the SI units: The binary prefixes