The process of removing a tape or disk May be a physical dismount (the volume is removed from the drive) or a logical dismount (the volume is made inaccessible to the system)
If you dismount from a horse or a bicycle, you get down from it. Emma dismounted and took her horse's bridle
To throw or remove from the carriage, or from that on which a thing is mounted; to break the carriage or wheels of, and render useless; to deprive of equipments or mountings; said esp
Pertaining to a horseman who has gotten off his horse, or to something which has been removed from its usual mounting, as with a statue off its pedestal, a framed picture from a wall, or a chandelier hanging from a ceiling