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The kilobyte is a multiple of the unit byte for digital information. A kilobyte may refer to either 1000 or 1024 bytes. The International System of Units (SI) defines the prefix kilo as a multiplication factor of 1000 (10 3); therefore, one kilobyte is 1000 bytes. [1] The internationally recommended unit symbol for the kilobyte is kB. [1]
4,704 bits (588 bytes) – uncompressed single-channel frame length in standard MPEG audio (75 frames per second and per channel), with medium quality 8-bit sampling at 44,100 Hz (or 16-bit sampling at 22,050 Hz) kilobyte (kB, KB) 8,000 bits (1,000 bytes) 2 13: kibibyte (KiB) 8,192 bits (1,024 bytes) – RAM capacity of a ZX81 and a ZX80.
For example, 'kilobyte' often refers to 1024 bytes even though the standard meaning of kilo is 1000. Also, 'mega' normally means one million, but in computing is often used to mean 2 20 = 1 048 576 .
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
An alternative system of nomenclature for the same units (referred to here as the customary convention), in which 1 kilobyte (KB) is equal to 1,024 bytes, [38] [39] [40] 1 megabyte (MB) is equal to 1024 2 bytes and 1 gigabyte (GB) is equal to 1024 3 bytes is mentioned by a 1990s JEDEC standard. Only the first three multiples (up to GB) are ...
KB: kilobyte 1024 2: MiB: mebibyte MB: megabyte 1024 3: GiB: gibibyte GB: gigabyte 1024 4: TiB: ... Wikipedia:Manual of Style/Dates and numbers § Quantities of bytes ...
Since a byte equals 8 bits, and 1 KB can equal 1024 bytes, 1 Kb therefore can equal 1024 bits. Microsoft, for example, in their operating systems counts 1024 bits as a kb, as does most networking software for windows, such as Net.Medic, and cfosspeed, both of which I use. --Rebroad 21:31, 10 March 2006 (UTC)
Binary; Value IEC Memory; 1024 Kibit: kibibit Kbit: Kb: kilobit 1024 2: Mibit: mebibit Mbit: Mb: megabit 1024 3: Gibit: gibibit Gbit: Gb: gigabit 1024 4: Tibit ...