#crash  (computer science) an event that causes a computer system to become inoperative; "the crash occurred during a thunderstorm and the system has been down ever since"
  supertype:  misadventure__mishap__mischance  an instance of misfortune
  subtype:  head_crash  (computer science) a crash of a read/write head in a hard disk drive (usually caused by contact of the head with the surface of the magnetic disk)

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