1. A unit of information equal to 1024 exbibytes or 2^70 bytes
   "The concept of zettabyte storage seemed far-fetched but not impossible";
   - zebibyte, ZB, ZiB
    
2. A unit of information equal to 1000 exabytes or 10^21 bytes
   "The total data stored worldwide is approaching one zettabyte";
   - ZB

Derived forms: zettabytes

Type of: computer memory unit

Part of: YB, YiB, yobibyte, yottabyte

Encyclopedia: Zettabyte