一个关于Byte递增的描述，蛮有趣的！
Bytes -> Kilobyte -> Megabyte -> Gigabyte -> Terabyte -> Petabyte -> Exabyte -> Zettabyte -> Yottabyte -> ...
http://highscalability.com/blog/2012/9/11/how-big-is-a-petabyte-exabyte-zettabyte-or-a-yottabyte.html
How Big Is A Petabyte, Exabyte, Zettabyte, Or A Yottabyte?
原文：http://www.cnblogs.com/liangjichen/p/4772732.html