ComputingDevice <|.. Computer
ElectricalDevice <|.. Computer

class ComputingDevice{
    <<Interface>>
    +«property» IPS: double*
    +Instructions()*
}

class ElectricalDevice{
    <<Interface>>
    +«property» Voltage: int*
    +«property» Frequency: int*
    +SafetyNotice()*
}

class Computer{
    -ips: double
    -voltage: int
    -frequency: int
    +Computer(ipsP : double, voltageP : int, frequencyP : int)
}