device introduced in the late 1960s IBM 2303 drum The IBM 2303 is a magnetic drum storage device introduced in 1964. IBM 2321 Data Cell The IBM 2321 Data Cell announced in 1964 is a device that uses short strips of magnetic tape to store data. It holds 10 40 MB removable cells, for a total capacity of 400 MB. IBM 3850 Mass Storage System The IBM 3850 Mass Storage System, announced in 1974, is a library system of tape cartridges that staged data from the cartridges onto physical IBM 3330 or 3350 disk drives which then appeared to the system as virtual 3330 drives. See also History of the floppy disk History of hard disk drives List of IBM products Notes References External links IBM Archive: Storage basic information sources IBM Archive: Table of links to disk drive articles Magnetic Disk Heritage Center A Quarter Century of Disk File Innovation, IBM Journal of Research and Development, 1981 EE Times: Disk drives take eventful spin IBM 1311 Disk storage drive IBM 2314 Direct access storage Floppy IBM magnetic disk drives IBM storage devices Hard disk computer storage