#portable_computer  a personal computer that can easily be carried by hand
  supertype:  #personal_computer__PC__microcomputer  a small digital computer based on a microprocessor and designed to be used by one person at a time
  subtype:  #briefcase_computer__briefcasecomputer  a portable computer housed in a box that resembles a briefcase
  subtype:  #hand-held_computer  a portable computer small enough to be carried in your pocket
  subtype:  #laptop_computer__laptop  a portable computer small enough to use in your lap
  subtype:  #notebook_computer__notebook  a small compact portable computer

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