- prefix 1024 units, equal to 210.
- A metric prefix representing 103, which is equal to a thousand. For instance, 1 kilohertz is equal to 103 Hz. When referring to binary quantities, such as bits and bytes, it is equal to 210, or 1,024, although this is frequently rounded to 1,000. To avoid any confusion, the prefix kibi- may be used when dealing with binary quantities. Its proper abbreviation is k, although K is often used.
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