terabyte

noun Computers.

1. 240 (1,099,511,627,776) bytes; 1024 gigabytes.
2. (loosely) 1012 or one trillion (1,000,000,000,000) bytes; 1000 gigabytes. Symbol: TB, TByte.

noun

1. computing 10 12 or 2 40 bytes

n.by 1982, from tera- + byte.

1. A unit of computer memory or data storage capacity equal to 1,024 gigabytes (240 bytes).
2. One trillion bytes. See Note at megabyte.