Like vinyls and record players, cassette tapes are an older music technology intended for audio storage. Cassette tapes are even more obsolete compared to record players, but, who knows, perhaps in a few years it will become trendy to walk around listening to cassette players. Thinking of cassette tapes makes me remember listening to audiobooks such as Hank the Cowdog, or songs like Puff the Magic Dragon, as a kid. The cassette tape uses magnetism to store and play music and really began a revolution on the storage of data. Previously, only external hard drives could be used to store large amounts of data on the computer, but these were generally even more expensive than the computer itself. The tape used in the cassette is a thin plastic coated with ferric oxide powder, an oxide of iron, which is ferromagnetic (Nave). When placed in a magnetic field, this iron oxide can become permanently magnetized. The tape can also be played on either side, A or B, so the cassette can be turned a