Wondering if we could fit enough QR codes with error correction on an 8.5" by 11" sheet of paper to equal the capacity of a floppy disk

It turns out there's a lot of floppy disk storage sizes and it's a lot less of a straight answer than a CD or DVD

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ok so it seems like we could store 315 kb of data on a sheet of paper in the form of 105 QR codes

Which is more than some floppy disks but less than most

It's possible to go smaller as this is assuming a 2x2 cm size but that becomes less reliable for actually being scannable by anything

@Mooclown good question, no! so if you printed double sided you could actually fit 630 kilobytes on a sheet of paper, nice

@quiet there's also a bunch of different QR code "versions" which are different sizes and also have different data density. there's also different levels of error correction which will also heavily affect data density
qrcode.com/en/about/version.ht

@Mooclown I think our calculations were using 177 x 177 codes, the largest ones, which come to think of it would probably hate being within 2 centimeters

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