Memory

Then: The first floppy disks were invented by IBM to store data and programs. Floppy disks came in 8 inch, 5 1/4 inch and 3 1/2 inch forms and were used for data storage from the mid-1970's to the late 1990's. The floppies held anywhere from 1.44 MB to 6MB worth of data.

Now: A micro SD drive that hold gigs of data can fit conveniently on a keychain.

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