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Meaning of secondary storage

sec'ondary stor'age

Pronunciation: [key]
— Computers. Computers.
  1. storage, as on disk or tape, supplemental to and slower than main storage, not under the direct control of the CPU and generally contained outside it:Also called Secondary storage for this system is contained on videodisk.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.