Byte

Information unit; consists of eight bits.

Decimal prefix Symbol Number of bytes      
Kilobyte kB 1,000 = 103
Megabyte MB 1,000,000 = 106
Gigabyte GB 1,000,000,000 = 109
Terabyte TB 1,000,000,000,000 = 1012
Petabyte PB 1,000,000,000,000,000 = 1015
Exabyte EB 1,000,000,000,000,000,000 = 1018
Zettabyte ZB 1,000,000,000,000,000,000,000 = 1021
Yottabyte YB 1,000,000,000,000,000,000,000,000 = 1024