#drive.device  (computer science) a device that writes data onto or reads data from a storage medium
  supertype:  device  an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water"
  part:  mandrel
  subtype:  CD_drive  a drive that reads a compact disc and that is connected to an audio system
  subtype:  CD-ROM_drive  a drive that is connected to a computer and on which a CD-ROM can be `played'
  subtype:  disk_drive__disc_drive__hard_drive__Winchester_drive  (computer science) computer hardware that holds and spins a magnetic or optical disk and reads and writes information on it
  subtype:  external_drive  a drive with its own power supply and fan mounted outside the computer system enclosure and connected to the computer by a cable
  subtype:  internal_drive  a drive mounted inside of a computer
  subtype:  RAM_disk  (computer science) a virtual drive that is created by setting aside part of the random-access memory to use as if it were a group of sectors; "access to a RAM disk is very fast but the data it contains is lost when the system is turned off"

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