A 1 PetaByte hard drive could hold 13.3 years of HD-TV video.
A 50 PetaByte hard drive could hold the entire written works of mankind, from the beginning of recorded history, in all languages.
When you start getting into 20 petabytes, you begin looking at crazy numbers, for 20 petabytes is the amount of data that Google processes on a single day. And get this, the total manufactured hard drive space in 1995 was equal to about 20 petabytes.
This graphic was created by Mozy, you might be wondering how many petabytes Mozy has stored, and the answer to that question is roughly 15 petabytes.
The graphic contains many intriguing facts, such as the fact that that worldwide datacentres now annually consume as much energy as Sweden. Hard drives are getting larger and larger, but they remain affordable because the price of them continues to go down. In 2007, Hitachi announced the world’s first terabyte hard drive which holds 1000 Gigabytes.
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