Applied knowledge to physical layer

Most of you are young enough not to have ever used a cassette tape as a digital storage system. But still you may feel curious about how it sounded and, even more important how it worked. This entry links to an article about using software to decode an old BASIC interpreter for Apple I computer.

Different techniques were used long time ago to create audio signals representing digital files that could be stored and recovered from a cassette using an inexpensive cassette player.


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