Definition

1. Noun:
   • A unit of digital information storage: A "terabyte" is a very large unit used to measure computer data, memory, or storage capacity. It is equal to 1,024 gigabytes (GiB) or 1,099,511,627,776 bytes in the binary system traditionally used in computing.
   • A unit of digital information storage (decimal system): In contexts involving data storage products (like hard drives) and telecommunications, a "terabyte" is often defined as 1,000 gigabytes or 1,000,000,000,000 bytes, following the decimal (metric) system.

Usage Examples

• Noun:
  • My new external hard drive has a capacity of two terabytes.
  • The dataset for the research project is over one terabyte in size.
  • Internet traffic is now measured in terabytes per second.

Advanced Usage

• "TB": The common abbreviation for "terabyte".
  • This SSD is available in 1 TB and 2 TB models.
• Contextual Ambiguity: It is important to note the context, as "terabyte" can represent two slightly different values (1,024 GB vs. 1,000 GB). The binary definition (1,024 GB) is sometimes specifically called a tebibyte (TiB) to avoid confusion.
  • The operating system reports the drive as 931 GB, because it uses tebibytes (base-2) while the manufacturer advertises it as 1 TB (base-10).

Variants and Related Words

• Terabit (Tb): A unit of data transfer rate equal to one trillion bits, not to be confused with terabyte (which is 8 times larger for storage).
  • The new fiber connection has a speed of one terabit per second.
• Gigabyte (GB): A unit 1,024 times smaller than a binary terabyte.
• Petabyte (PB): A unit 1,024 times larger than a binary terabyte.

Synonyms

• TB (abbreviation).
• (In specific contexts) Tebibyte (TiB): The formal term for 1,024 gibibytes (2^40 bytes).

Noun

1. a unit of information equal to 1024 gibibytes or 2^40 (1,099,511,627,776) bytes
2. a unit of information equal to 1000 gigabytes or 10^12 (1,000,000,000,000) bytes