terabyte

from WordNet (r) 3.0 (2006)

terabyte
    n 1: a unit of information equal to 1000 gigabytes or 10^12
         (1,000,000,000,000) bytes [syn: {terabyte}, {TB}]
    2: a unit of information equal to 1024 gibibytes or 2^40
       (1,099,511,627,776) bytes [syn: {terabyte}, {tebibyte}, {TB},
       {TiB}]

from The Free On-line Dictionary of Computing (8 July 2008)

terabyte

   <unit> 2^40 = 1,099,511,627,776 {bytes} = 1024 {gigabytes} or
   roughly 10^12 bytes.

   (Note the spelling - one 'r').  See {prefix}.

   (1995-09-29)

[email protected]