Anyone still using floppy disks?

What size? 3½”? 5¼”? Older/bigger size/smaller capacity?

Tangential question: in countries on the metric system, how did they refer to those disks? 8.89cm? 13.335cm?

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For those of you who only know what a bittorrent is, you can learn about floppy disks here. Back in the day, that’s how we played Zork.