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Magnetic storage has come a long way since 1967 when IBM developed the 8-inch floppy disk. However, I assume you are referring to the 5 1/4 floppy that came out in 1976 and the 3 1/2 high-density disk that came out in 1987. The three major differences between these two disks are the physical size, the storage size, and the speed. The 3 1/2 disks were much quicker, smaller in size, and held more data.

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10y ago

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