As of 2010, no system has yet achieved one yottabyte of storage. In fact, the combined space of all the computer hard drives in the entire world does not amount to even one yottabyte. According to one study, all the world's computers stored approximately 160 exabytes [exabyte = 1 billion gigabytes] in 2006. As of 2009 the entire internet was estimated to contain close to 500 exabytes
"Too much is almost enough. Anything in life worth doing is worth overdoing. Moderation is for cowards."