Save Icons! In Real Life?! (My Love of the Floppy Disk!)
summary
Explains how floppies store bits by magnetic polarity changes and how a small encoding tweak—frequency modulation encoding versus modified FM—turns into a literal doubling of density, letting one choose spin speed or capacity; lists real-era numbers (1.5 MB 3.5" disks, Doom on four discs, Windows 95 on 13, Office on 24–30, CD holds 500+); dissects drives and heads, uses an oscilloscope steganography demo that prints an image into the flux so a disk that won’t read on a drive still shows art on an oscilloscope.
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chapters (8)
- 0:00Floppy disks and culture
- 1:48Why floppy disk became save icon
- 3:11How floppy disks store data
- 4:16Floppy disk drive mechanics
- 5:21Syncing data between drives
- 6:45Frequency modulation encoding
- 7:46Modified FM encoding
- 9:33Magnetic flux visualization
