query: Who invented the floppy disk?
passage: Yoshiro Nakamatsu
Based upon a patent issued in 1952, Nakamatsu claims to have invented the first floppy disk[28] well before IBM's floppy disk patent was filed in 1969.[29] However, what Nakamatsu patented in 1952 was a paper for optical sound player.[13] In contrast to a floppy disk, this Nakamatsu patent discloses the use of printed paper for storage instead of the magnetic material of a floppy disk. It is not rewritable and lacks most elements of the IBM floppy disk patent. Since the paper was 'floppy' material, he claims he had invented the floppy disk (sometimes he uses the phrase "floppy media"); however, it should be noted that flexible magnetic recording media was well known prior to 1952, in tape and wire recording.
passage: SuperDrive
The term was first used by Apple Computer in 1988 to refer to their 1.40 MB 3.5 inch floppy drive. This replaced the older 800 KB floppy drive that had been standard in the Macintosh up to then, but remained compatible in that it could continue to read and write both 800 KB (double-sided) and 400 KB (single-sided) floppy disks, as well as the then-new high-density floppies.