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- The HP 82901M: The Disk Drive Difference
The HP 82901M: The Disk Drive Difference
Date: ca. 1980
The HP 82901M dual 5.25″ floppy disk drive was developed for use with the HP 85. When the two devices were used together, the 85’s status as a personal computer rather than a calculator was clear.
(C) HPCA
