The digital universe has grown to 1.2 zettabyte
Information flows continue to grow exponentially (however, who would doubt). According to the latest IDC estimates , in 2010 the amount of digital information generated and copied will reach 1.2 zettabytes (i.e. 1.2 billion terabytes). The scale of this figure can be estimated in different ways. For example, these are 10 9 libraries of the Congress or a stack of DVDs up to the moon 1 .
Approximately 75% of the information created in the world is a copy, and only 25% is original data (homemade HD videos, photos, scientific data, etc.).
It is also interesting that the total volume of all storage devices on our planet (hard and laser disks, flash memory, etc.) in 2009 was 35% less than the amount of information created at the same time (0.8 ZB) and this difference is gradually increasing: by 2020, as expected, it will increase to 60%. That is, more than half of the information created cannot be saved.
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In general, we can say with confidence: 640 petabytes of memory will be enough for each computer.
Approximately 75% of the information created in the world is a copy, and only 25% is original data (homemade HD videos, photos, scientific data, etc.).
It is also interesting that the total volume of all storage devices on our planet (hard and laser disks, flash memory, etc.) in 2009 was 35% less than the amount of information created at the same time (0.8 ZB) and this difference is gradually increasing: by 2020, as expected, it will increase to 60%. That is, more than half of the information created cannot be saved.
')
In general, we can say with confidence: 640 petabytes of memory will be enough for each computer.
1 The disks should be in paper envelopes: such a stack is obtained if we assume that there are six disks in a centimeter, whereas the thickness of the disk itself is 1.2 mm, that is, without envelopes in 8 cm, (3) disk.
Source: https://habr.com/ru/post/92831/
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