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The ascending prefixes peta (1000 5) and exa (1000 6) are based on the Greek-derived numeric prefixes "penta" (5) and "hexa" (6). The largest prefixes zetta (1000 7), and yotta (1000 8) and, similarly, the descending prefixes zepto (1000 −7) and yocto (1000 −8) are derived from Latin [25] "septem" (7) and " octo" (8) plus the initial ...
A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or submultiple of the unit. All metric prefixes used today are decadic.Each prefix has a unique symbol that is prepended to any unit symbol.
peta exa zetta yotta ronna quetta; Prefix symbol da h k M G T P E Z Y R Q Factor 10 0: 10 1: 10 2: 10 3: 10 6: 10 9: 10 12: 10 15: 10 18: 10 21: 10 24: 10 27: 10 30 ...
yotta Y 1 000 000 000 000 000 000 000 000: 10 24: zetta Z 1 000 000 000 000 000 000 000: 10 21: exa E 1 000 000 000 000 000 000: 10 18: peta P 1 000 000 000 000 000: 10 15: tera T 1 000 000 000 000: 10 12: giga G 1 000 000 000: 10 9: mega M 1 000 000: 10 6: kilo k 1 000: 10 3: hecto h 100 10 2: deca da 10 10 1 (none) (none) 1 10 0: deci d 0.1 ...
Prefix Base 10 Decimal Adoption [nb 1]Name Symbol quetta: Q: 10 30: 1 000 000 000 000 000 000 000 000 000 000: 2022 [1]: ronna: R: 10 27: 1 000 000 000 000 000 000 000 000 000: yotta: Y: 10 24: 1 000 000 000 000 000 000 000 000 ...
Historically, a byte was the number of bits used to encode a character of text in the computer, which depended on computer hardware architecture, but today it almost always means eight bits – that is, an octet.
The 19th CGPM defines the SI prefixes zetta, and yotta as 10 21 and 10 24. [92] May 13: Apple releases Macintosh System 7 [93] containing Finder 7.0, which uses M in a binary sense to describe HDD capacity. [94] The HP 95LX uses "1MB" in a binary sense to describe its RAM capacity. [citation needed] Micropolis 1528 Rigid Disk Drive Product ...
yotta Y 10 24: 1 000 000 000 000 000 000 000 000: zetta Z 10 21: 1 000 000 000 000 000 000 000: exa E 10 18: 1 000 000 000 000 000 000: peta P 10 15: 1 000 000 000 000 000: tera T 10 12: 1 000 000 000 000: giga G 10 9: 1 000 000 000: mega M 10 6: 1 000 000: kilo k 10 3: 1 000: hecto h 10 2: 100 deca da 10 1: 10 (none) (none) 1 deci d 10 −1: 0 ...