Film is rearranged metal particles on tape which are read by an electromagnet. CDs are discs with burned pits in them which are read by a laser. What makes one analog and one digital?
In: Technology
The reader has to know what to do when they read the tape/CD. It’s perfectly possible to make a reader that reads tape as digital, or reads CD’s as analog. If the reader reads as digital, then it converts the measurement to a 1 or 0, otherwise the measurement directly converts to an audio voltage.
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