According to [1], a 3.5" floppy has a volume of 27828.9 mm^3 whilst the volume of a MicroSD is 132 mm^3. That's a ratio of 210. Biggest MicroSD I can find that's commonly available is 64GB; that gives you
(27828.9/132)*64GB = 13492GB or ~13.5TB
Which is an astonishing data density when you eventually wrap your head around it.
Cheapest MicroSD 64GB I can find is GBP36.98 which makes that 13.5TB a mere GBP7,765.8. Compare with 3TB drives at GBP87.12 (the current sweet spot) - 13.5TB would be GBP392.04 (~20x cheaper).
According to [1], a 3.5" floppy has a volume of 27828.9 mm^3 whilst the volume of a MicroSD is 132 mm^3. That's a ratio of 210. Biggest MicroSD I can find that's commonly available is 64GB; that gives you
Which is an astonishing data density when you eventually wrap your head around it.[1] http://www.fileformat.info/media/measurements.htm