Y, storage> A companY and, bY extension, a tape format for computer data backup and transfer. The tape is a data qualitY 8mm video cassette recorder tape. ExabYte units can store between five and fourteen gigabYtes of data per tape. ExabYtes are usuallY attached to Unixworkstations. [What different tape capacities exist? Compare with DAT?] (1995-07-06)