If Madonna penned a new pop song for teens growing up in the Zettabyte Era, she could do worse on the lyric front than: “We are living in a data-rich world, and I am a data-rich girl.” What is a zettabyte? It equals 1,024 exabytes, which is a billion terabytes, or a trillion gigabytes. Expressed with all the zeros, a zettabyte is 1,000,000,000,000,000,000,000 bytes — phew.
