A terabyte (TB) is a unit of digital storage capacity equal to approximately 1,000 gigabytes (GB) or one trillion bytes. Modern computers commonly have terabyte-scale storage, and external drives for backup often hold multiple terabytes. Large video files, extensive photo collections, and growing data from sensors and systems consume terabyte-scale storage. Government organizations manage significant data volumes requiring terabyte and petabyte (1,000 TB) storage capacity for records, geographic information systems, security footage, and operational data. Cloud storage services often price by storage volume, with terabyte plans common for organizational needs. Understanding storage scale helps evaluate technology needs and costs for data-intensive applications.