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Relation: subclass

ComputerComponent14An instance of ComputerComponent is a piece of computer hardware that has measurable performance ...^
ComputerIODevice20A ComputerIODevice is both a ComputerInputDevice and a ComputerOutputDevice.^
    DiskDrive10A device that can read and (often) write ComputerDisks.^
        ExternalDiskDrive1A type of DiskDrive that can be attached to a Computer by a cable.^
        DiskDriveWithRemovableDisks2A type of DiskDrive that can have different ComputerDisks installed at different times. Inserti...^
        HardDiskDrive2The primary computer storage medium, which is made of one or more aluminum or glass platters, coate...^
        OpticalDiscDrive3A device that can read and (in some cases) write certain kinds of OpticalDisc.^

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