FACTOID # 89: In the 1990's, nearly half of all arms exported to developing countries came from the United States of America.
 
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Encyclopedia > Atto

Atto- (symbol a) is an SI prefix to a unit and means that it is 10-18 times this unit. Examples are one attosecond or one attometre (U.S. spelling attometer).


Adopted in 1964, it comes from the Danish atten, meaning eighteen.



SI prefixes
10n Prefix Symbol Short scale Long scale Name Decimal Equivalent
1024 yotta Y Septillion Quadrillion 1 000 000 000 000 000 000 000 000
1021 zetta Z Sextillion Trilliard (thousand trillion) 1 000 000 000 000 000 000 000
1018 exa E Quintillion Trillion 1 000 000 000 000 000 000
1015 peta P Quadrillion Billiard (thousand billion) 1 000 000 000 000 000
1012 tera T Trillion Billion 1 000 000 000 000
109 giga G Billion Milliard (thousand million) 1 000 000 000
106 mega M Million 1 000 000
103 kilo k Thousand 1 000
102 hecto h Hundred 100
101 deca, deka da Ten 10
10−1 deci d Tenth 0.1
10−2 centi c Hundredth 0.01
10−3 milli m Thousandth 0.001
10−6 micro µ Millionth 0.000 001
10−9 nano n Billionth Milliardth 0.000 000 001
10−12 pico p Trillionth Billionth 0.000 000 000 001
10−15 femto f Quadrillionth Billiardth 0.000 000 000 000 001
10−18 atto a Quintillionth Trillionth 0.000 000 000 000 000 001
10−21 zepto z Sextillionth Trilliardth 0.000 000 000 000 000 000 001
10−24 yocto y Septillionth Quadrillionth 0.000 000 000 000 000 000 000 001
edit  (http://en.wikipedia.org/w/index.php?title=Template:SI_prefixes&action=edit)



See also







  Results from FactBites:
 
atto bioscience | Custom Projects | Capabilities (403 words)
Atto believes the unique interplay between engineering, manufacturing, software, cell biology and assay development is essential to the development of imaging platforms that meet the real needs of the research community, and provide successfully integrated hardware, software and assay solutions.
The biology group at Atto is comprised of over 70% Ph.D.'s with extensive depth in areas ranging from cloning and protein expression, cell culture, assay development, and drug screening.
Atto has developed novel, world-class cell engineering capabilities, and maintains extensive collections of cloned receptors, G-proteins, and signal transduction proteins which it successfully applies to the development of generally useful assays such as Act:One, custom assays, basic research and target identification/validation.
Plasmon News - ATTO Products Certified Interoperable with Plasmon Data Storage Libraries (814 words)
The ATTO configuration utilities tool allows users to easily update the firmware, run performance benchmarks and change settings such as "NVRAM" in order to optimize the HBA for their specific workflow.
ATTO offers the widest selection of bridges in the industry, ranging from a 1 Fibre Channel port x 1 SCSI port economical, Fibre Channel-to-SCSI bridge to a 3 Fibre Channel port x 4 SCSI port configuration that offers premier performance with ultimate throughput required for high-demand mission-critical applications.
ATTO Technology, Inc., is a global leader in Fibre Channel, IP and SCSI storage and storage-infrastructure solutions for Content Creation and Enterprise environments.
  More results at FactBites »

 

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