Science (Science) has just published a study that said that by the end of 2007 the world had stored about 295 exabytes of data (1 exabyte = 1 billion GB) through more than 60 different methods. such as hard drives, DVDs or printed books, but the amount of digitized data accounts for 94% of all human data.
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The researchers figured it out figuratively, if this amount of data is printed into books, the number of books will cover the entire area of China and 13 layers thick. If you put this amount of data stored on a CD, this stack of disks will be as tall as the distance from the earth to . the moon.
According to the research team, this is essentially just the amount of data stored between 1986 and 2007 and this is the clearest evidence for the revolution of ' information explosion ' that the world spent the past few years. If in 2000, about 75% of the world's data was still stored by analog technology (cassette tape, video tape .) then in 2007, the storage rate by digital technology (hard disk drive .) was is 94%.
As of 2010, there are about 2 zettabytes of data per day (1 zettabyte = 1,000 exabytes) distributed around the world or, on average, every person in the world will have to read about 175 newspapers a day. However, the digital gap between rich and poor countries in the world is also increasing sharply, the researchers said. In 2002, the amount of information that a person in a rich country received was 8 times more than that of a poor country. In 2007, this gap was 15 times.
