Things getting worse in Big data era Kilo Mega Giga Tera Peta Exa 2001:2×1018=2 EXa Bytes Zeta 2011: 1.8ZB=1800 EXa Bytes, filling up 575x 108 32GB iPad Use iPad as bricks, we can build 2 great walls of china Yotta 2020: 40ZB, enough to build 45 great walls Concept HIstory Status FutureConcept HIstory Status Future 3 Kilo Mega Giga Tera Peta Exa Zeta Yotta 2001: 21018 =2 Exa Bytes 2011: 1.8ZB=1800 Exa Bytes，filling up 575x 108 32GB iPad. Use iPad as bricks, we can build 2 great walls of china. 2020: 40ZB，enough to build 45 great walls. Things getting worse in Big Data Era Concept