public void ConnectedPeripheral(Peripheral.Peripheral peripheral)        //accepting objects of either keyboard, mouse, or screen because it is polymorphic
 {
     if (Connectors.TryGetValue(peripheral.ConnectorType, out int value)) //Validation to add peripheral based on the available connection type.
     {
         Peripherals.Add(peripheral);
     }
     else
     {
         throw new Exception(); //throw exception with there is no available ports that matches the peripheral
     }
 }
 /*
  * A “DisconnectPeripheral()” method that accepts a type of peripheral, and will disconnect all connected peripherals of that type.
  */
 public void DisconnectedPeripheral(Peripheral.Peripheral peripheral)
 {
     Peripherals.RemoveAll(x => x.Brand == peripheral.Brand); //remove based on Brand
 }