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Download as PDF; Printable version; In other projects ... move to sidebar hide. Prefixes for decimal and binary multiples Decimal; Value SI; 1000 10 3: k: kilo ...
Commonly, a decimal SI metric prefix (such as kilo-) is used with bit and byte to express larger sizes (kilobit, kilobyte). But, this is usually inaccurate since these prefixes are decimal, whereas binary hardware size is usually binary. Customarily, each metric prefix, 1000 n, is used to mean a close approximation of a binary multiple, 1024 n ...
For communication throughput, a base unit of bit is common. For example, using the metric kilo prefix, a kilobyte is 1000 bytes and a kilobit is 1000 bits. Use of metric prefixes is common, but often inaccurate since binary storage hardware is organized with capacity that is a power of 2 – not 10 as the metric prefixes are.
In the "origin" column of the table on page 8 is clearly shows the text "tera + binary: (2 10) 4 = 1 099 511 627 776" bytes. This PDF version clearly separates the binary tera from the other columns. There is no ambiguity that the JEDEC defines tera in the binary sense. Leaving out that fact from the table is illogical and inaccurate.
A binary prefix is a unit prefix that indicates a multiple of a unit of measurement by an integer power of two.The most commonly used binary prefixes are kibi (symbol Ki, meaning 2 10 = 1024), mebi (Mi, 2 20 = 1 048 576), and gibi (Gi, 2 30 = 1 073 741 824).
The byte is the most common unit of measurement of information (megabyte, mebibyte, gigabyte, gibibyte, etc.). The decimal SI prefixes kilo, mega etc., are powers of 10. The power of two equivalents are the binary prefixes kibi, mebi, etc. Accordingly: 1 kB = 1000 bytes = 8000 bits; 1 KiB = 2 10 bytes = 1024 bytes = 8192 bits
The International System of Units defines a series of decimal prefixes for multiples of standardized units which are commonly also used with the bit and the byte. The prefixes kilo (10 3) through yotta (10 24) increment by multiples of one thousand, and the corresponding units are the kilobit (kbit) through the yottabit (Ybit).
Download as PDF; Printable version; ... Bit and byte prefixes; ... Manual of Style/Dates and numbers § Quantities of bytes and bits