3.5" floppy disks were made of iron oxide on a flexible plastic disc encased ins... | Hacker News

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bitwize on Sept 19, 2021 | parent | context | favorite | on: Why we picture bombs as round black balls with a b...

3.5" floppy disks were made of iron oxide on a flexible plastic disc encased inside a rigid shell. Only the shell was rigid.

stan_rogers on Sept 19, 2021 [–]

Well, the shell and the metal drive ring at the centre of the disc (something 8" and 5¼" floppies didn't have).

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