electromechanical devices for the storage and automated interchange of magnetic tape reels, cartridges, minicartridges, cassettes and microcassettes with computer tape drives; computer tape drives; blank and preformatted magnetic tapes for use therewith; and instruction manuals sold together with the foregoing as a unit

COMPUTER DATA STORAGE SYSTEMS COMPRISING DATA BACKUP AND STORAGE TAPE DRIVES, TAPE LOADERS AND TAPE LIBRARIES