I’m an IT guy and love everything about computers, as long as they’re made by a company that uses a piece of fruit as their logo. I thought I could expand the knowledge of cachers by presenting information about units of measure for computers. The zettabyte is a multiple of the unit byte for digital information. The unit symbol for the zettabyte is ZB. The prefix zetta indicates multiplication by the seventh power of 1000 and therefore one zettabyte is one sextillion bytes of information. One ZB is equal to 1 billion terabytes. As of 2013, the World Wide Web is estimated to have reached 4 ZB.