A terabyte (TB) is a unit of digital information storage equivalent to exactly 1,099,511,627,776 bytes. It is commonly used to measure large amounts of data, such as high-resolution images, video files, or extensive digital archives in photography and multimedia.
For photographers, understanding terabytes is important when managing storage for RAW files, backups, and image libraries. With modern cameras producing increasingly large files, having sufficient terabyte-scale storage ensures that photographers can safely store, organise, and access their digital work without running into capacity limitations.