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Random news from the Archive
New unit of measure - kettabyte
27.11.2022
The world has come close to the largest existing unit of measure for the amount of data. Therefore, new prefixes have recently been added to the International System of Units of Measurement. They say that they will last for several more decades.
For the first time in over 30 years, new terms have been officially added to the International System of Units (SI). Four new prefixes - ronna, quetta, ronto and quecto - now signify the largest and smallest numbers.
The SI system uses prefixes to conveniently indicate the number of zeros in a measured unit. For example, a value of 649 million bytes with this prefix becomes a convenient 649 megabytes.
Today, the amount of data created and consumed around the world is measured in zettabytes (add 21 zeros). After that there is another big one yottabyte, or 24 zeros after the digit. By the 2030s, the world is expected to generate one yottabyte of data per year. This amount of data, recorded on DVD, will last all the way to Mars.
At the General Conference on Weights and Measures (CGPM), global representatives voted to introduce four new SI prefixes. The number 10 with 27 zeros is now officially known as ronna, and 10 with 30 zeros is now known as quetta. The smallest prefixes are respectively designated ronto (27 decimal places) and quecto (30 decimal places). This follows naming conventions that use prefixes ending in "a" for large numbers and "o" for small numbers.
According to Dr Richard Brown, Head of Metrology at the UK's National Physical Laboratory (NPL) and lead researcher on the proposal, these names were chosen because the letters R and Q were the last two letters of the alphabet not yet used for other prefixes.
Although ronnabytes and colorbytes of data are likely to be the first uses, as are any SI prefixes, these new prefixes can be used for any unit of measure. For example, 1 kectogram is equal to the mass of one bit of data stored on a mobile phone.
It is interesting that IT companies that love to invent a "bicycle" are trying to come up with their own in the case of value prefixes. Google already convinces users that 1 yottabytes equals 000 hellabyte. However, the first letter of the hellabyte is already taken by the hekto prefix (two zeros after the number).
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