Disk
Part of speech: noun
Definition: A thin, flat, circular plate or similar object. Something resembling a disk. A vinyl phonograph/gramophone record. A floppy disk - removable magnetic medium or a hard disk - fixed, persistent digital storage. A disc - either a CD-ROM, an audio CD, a DVD or similar removable storage medium.
Example sentence: Time travel and teleportation will have to wait. It may take centuries to master these technology. But within the coming decades, we will understand dark matter, perhaps test string theory, find planets which can harbor life, and maybe have Brain 2.0, i.e. our consciousness on a disk which will survive even after we die.
Disc
Part of speech: noun
Definition: A thin, flat, circular plate or similar object.An intervertebral disc.Something resembling a disc.A vinyl phonograph / gramophone record.
Example sentence: The main difference between listening to music on a computer and listening to music on vinyl or disc is not sound quality or even portability; it's that when you listen to music on a computer, you listen to music on the same instrument you use to acquire it.