A small plastic case containing tape for recording and playing sound or video, used widely before digital media.
From French 'cassette', a diminutive of 'casse', meaning 'box', from Latin 'capsa', 'case' or 'box'. It literally means 'little box'.
A cassette is just a 'little box' of sound, and the word doesn’t care whether it holds music, language lessons, or data. The same root gave us 'capsule' and 'case'—all different ways humans hide and protect information.
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