For example, would it look like waveforms printed onto the tape? Or are they fast magnetic pulses of some kind?
In: Engineering
A bit like these, but in a continuous line instead of a series of circles…
https://pbs.twimg.com/media/Dxx4D3JW0AAHMiL.png
https://habrastorage.org/getpro/habr/upload_files/77a/290/da0/77a290da083b113759e70c6976abc33e.png
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